Islands in Sumatra offer one of the most exotic and untouched tropical paradise in Indonesia. The islands offer ranging from the world class diving in Pulau Weh, endless surf breaks in Mentawai to pristine of Banyak Islands. This region holds tremendous potential for marine tourism.
The islands in Sumatra are offshore gem represent last frontier for those seeking marine biodiversity, fishing enthusiast, authentic culture, turquoise waters provide perfect blend of adventure. We recommend to visit during March to October while the seas are calm.
Table of Contents
- Explore Sumatra
- 1. Pulau Weh, Aceh
- 2. Mentawai Island
- 3. Belitung Island
- 4. Bintan Island
- 5. Banyak Island
- 6. Nias Island
- 7. Pasumpahan Island
- 8. Samosir Island
- 9. Siberut Island
- 10. Pahawang Island
- 11. Sirandah Island
- 12. Pamutusan Island
- 13. Natuna Island
- 14. Enggano Island
- 15. Cubadak Island
- Best Time to Visit
- FAQs
Explore Sumatra
Exploring the beautiful islands in Sumatra requires careful planning due to the considerable distances between destinations. The islands offer an extraordinary diversity of ecosystems, ranging from volcanic mountains to pristine marine parks.
To make the most of your trip, choosing an efficient route is crucial so that every moment of your adventure leaves a lasting impression without wasting energy on the journey. Here are some key activities that can be incorporated into a travel package with SWI Tour & Travel:
Aceh Pulau Sabang: Top Underwater Tourism Destinations
Sabang Island, particularly Weh Island, is a gem at the westernmost tip of Indonesia that offers exceptionally clear seawater visibility. This destination is a magnet for divers and snorkelers due to the presence of Rubiah Marine Park, which is rich in biodiversity.
Here, visitors can swim alongside hundreds of species of tropical fish and witness firsthand the healthy, colorful coral reef formations. In addition to its underwater beauty, Sabang also features historical sites from World War II scattered across several strategic points on the island.
Mount Sibayak Sunrise Hike: Climbing an Active Volcano
For those who love heights, Mount Sibayak in Berastagi offers a relatively easy hiking experience with spectacular rewards. The hike on one of best Sumatra’s volcano typically begins in the early morning to catch the sunrise from the mountain’s summit, which emits active sulfur fumes.
The hiking trails vary, ranging from paved roads to rocky footpaths, making Mount Sibayak hike suitable for both novice and experienced hikers. The view of the steaming volcanic crater beneath the crimson dawn sky is a major attraction rarely found elsewhere.
Bukit Lawang Jungle Trekking: Exploring the Tropical Rainforest
Bukit Lawang is the main gateway to Gunung Leuser National Park, one of the last remaining habitats of the Sumatran orangutan in the wild. Bukit Lawang Jungle Trekking here is not just a walk in the woods, but an educational experience about the tropical rainforest ecosystem—the lungs of the world.
During the expedition, a team of professional guides will help visitors identify various wildlife, such as Thomas’s leaf monkeys, gibbons, and peacocks. After a tiring hike through the dense forest, the adventure usually concludes with an exciting river tubing experience down the refreshing currents of the Bahorok River.
Medan Lake Toba Tour Package: A Visit to the Largest Volcanic Lake
Lake Toba is one of Sumatra’s beautiful lake and largest caldera on earth. This tourist destination is a natural wonder formed by an ancient supervolcanic eruption and has now become a top tourist destination in Indonesia. In the center of the lake lies Samosir Island, the heart of Batak culture, rich in history and noble traditions.
Through this Medan Lake Toba tour package, visitors will be taken to explore traditional villages such as Tomok and Ambarita to see the traditional Bolon houses and the tombs of ancient kings. The panoramic beauty of the lake from above, combined with the cool air and the friendliness of the locals, creates a relaxing yet inspiring vacation atmosphere.
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Fishing in Aceh: Special Deep-Sea Fishing Package
The waters off Aceh, particularly in the Indian Ocean, are known as one of the best fishing spots. Strong ocean currents and complex underwater topography make this area a habitat for large predatory fish such as Giant Trevally (GT), Tuna, and Marlin.
This fishing package is specifically designed for anglers seeking the thrill of deep-sea fishing using a specialized boat equipped with modern navigation gear. In addition to the sport of fishing, this activity also offers participants the chance to experience the untamed beauty of Sumatra’s coastline—a region largely untouched by the average tourist
List of the 15 Best Islands to Visit in Sumatra
1. Weh Island, Aceh: A Marine Paradise at the Western Tip of the Indonesian Archipelago
Weh Island is the westernmost point of Indonesia and has long been a major draw for professional divers and snorkeling enthusiasts from around the world. Geographically, the island is located in Aceh Province and offers underwater beauty that remains largely untouched. To reach this destination, the journey begins at Ulee Lheue Port in Banda Aceh via speedboat, with a travel time of only about 45 minutes to Balohan Port.
Pulau Weh with the Sabang as the capital as a region that upholds cultural values and Islamic Sharia law, visitors are strongly advised to observe proper dress codes. Wearing modest clothing in public areas or when passing through residential neighborhoods is a sign of respect for local customs. This is important to ensure harmonious interactions between tourists and the local community.
The main activities on this island is underwater exploration, where water visibility peaks from April through November. During this time, underwater visibility is exceptionally clear, allowing divers to clearly observe the diversity of coral reefs and rare marine species. Destinations like Rubiah Marine Park and Karang Batik are top favorites, offering views of tropical fish swimming among colorful coral formations.
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2. Mentawai Islands, West Sumatra: The World’s Surfing Mecca
The Mentawai Islands have long been recognized as one of the best surfing destinations on the planet thanks to their incredible year-round wave consistency. Located off the west coast of Sumatra, this archipelago is home to several legendary surf spots, such as Hollow Trees and Lance’s Right, which attract professional surfers from around the world. The best swell season typically occurs between May and September, when the waves reach ideal heights for this extreme sport.
However, the appeal of these beautiful islands in Sumatra extends far beyond water sports. On Siberut Island, visitors have a rare opportunity to explore the authentic culture of the Mentawai people, one of Indonesia’s oldest tribes that still maintains a traditional way of life deep within the rainforest.
See Also:
- Fishing in Mentawai
- Best Time to Visit Mentawai
- Diving in Mentawai
- Spearfishing in Mentawai
- How to get to Mentawai
- Surfing in Mentawai
Travelers can learn about local wisdom, witness the process of creating iconic traditional tattoos, and experience the hospitality of the locals inside the traditional Uman house. The blend of ocean adventures and deep anthropological experiences makes Mentawai a truly unique destination.
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3. Belitung Island, Bangka Belitung: The Allure of Giant Granite
Belitung Island offers a coastal landscape that is quite different from that of other top islands in Sumatra. This is due to the presence of massive granite rock formations scattered along its shores.
The beauty of these ancient rocks, combined with fine white sand and crystal-clear blue seawater, creates a highly photogenic and dramatic panorama. One of the most highly recommended activities is visiting Lengkuas Island. This island is famous for its historic Dutch-era lighthouse, built in 1882.
From the top of the lighthouse, visitors can enjoy a breathtaking 360-degree view of the ocean. Additionally, the waters around Lengkuas Island and Batu Berlayar Island offer exceptional snorkeling spots. Colorful hard coral reefs are home to a variety of tropical fish.
The best time to visit Belitung is between March and November, when the sea is typically calm and mirror-like. This makes it very safe for island-hopping and underwater exploration.
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4. Bintan Island, Riau Islands: The Gateway to Luxury Resorts
Bintan Island offers the perfect blend of world-class luxury resort facilities and pristine natural beauty. Strategically located along international shipping routes, this premier island in Sumatra is easily accessible via high-speed ferry from Singapore or Batam, with a travel time of just one hour.
The Lagoi area serves as the hub of an integrated tourism development, offering a world-class golf course, a massive seawater swimming pool, and exclusive accommodations with direct views of the Natuna Sea. Although known as a premium destination, Bintan still retains its traditional charm, such as the Trikora Beach area, which offers a more local and tranquil atmosphere. Here, visitors can enjoy fresh seafood while gazing at the vast expanse of white sand.
Additionally, Soreh Island near Bintan is an attractive snorkeling spot for those seeking tranquility away from the main resort areas. Easy accessibility and comprehensive facilities make Bintan a favorite destination for both international tourists and families.
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5. Banyak Islands, Aceh: Serenity Across 99 Islands
The Banyak Islands are the perfect destination for those seeking absolute tranquility and wanting to escape the hustle and bustle of the city. This beautiful archipelago off the coast of Sumatra consists of approximately 99 small islands, most of which are uninhabited and feature pristine white-sand beaches.
Palambak Island and Sikandang Island are the two best spots for tourists to stay. They offer simple beachfront bungalows that provide breathtaking sunset views.
The main highlight of the Banyak Islands lies in their exceptionally clear waters and extremely calm sea conditions. This makes them ideal for snorkeling and kayaking among the islands. The underwater ecosystem remains well-preserved, offering a private snorkeling experience with minimal disturbance from other tourists.
Because of its secluded location, a trip to the Banyak Islands requires careful planning. However, the natural beauty of this “Maldives of Sumatra” will more than make up for all the effort of the journey.
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6. Nias Island, North Sumatra: A Blend of Waves and Tradition
The next best islands in Sumatra is Nias Island. This island is a destination that uniquely combines sports tourism potential with a rich cultural heritage.
In the southern part of the island, specifically at Point Lagundri (Sorake Beach), surfers from all over the world gather to conquer the waves, which are renowned as some of the best in Indonesia. The consistency of its waves makes Nias a regular venue for various international surfing competitions.
In addition to its powerful waves, Nias is widely known for its living Megalithic cultural traditions. One of the most iconic cultural attractions is the Stone Jumping or Fahombo tradition, where village youths leap over a two-meter-high pile of stones as a symbol of maturity and courage.
A visit to Bawomataluo Village allows travelers to see the magnificent architecture of the Omo Hada traditional houses, which are built to withstand earthquakes. The combination of adrenaline on the water and rich history on land makes Nias a destination with a very distinct character in Sumatra.
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7. Pasumpahan Island, West Sumatra: A Hidden Gem Off the Coast of Padang
Pasumpahan Island is a small island located off the coast of Padang, West Sumatra. This is one of the beautiful islands in Sumatra as a favorite destination for day trips and camping.
The island’s main attraction is the stunning gradation of colors in the sea, ranging from crystal-clear waters near the shore to turquoise and deep blue in the deeper sections. Its soft white sand and lush coconut trees create a tropical atmosphere that is ideal for relaxing and unwinding.
Because it is not too far from the mainland, Pasumpahan Island is easily accessible by fishing boat from a small port in the Bungus area of Padang. In addition to swimming and relaxing, visitors often hike up a small hill on the island to enjoy a panoramic view of Kabung Bay from above.
See Also:
- Things to do in Samosir
- Things to do in Batam
- Things to do in Padang
- Things to do in Bukittinggi
- Things to do in Palembang
- Things to do in Mentawai
- Things to do in Jambi
- Things to do in Lampung
Its unspoiled natural beauty and relatively peaceful atmosphere make it the perfect choice for families and groups of young adventure seekers looking for a short getaway on the west coast of Sumatra without having to travel far.
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8. Samosir Island, North Sumatra: The Heart of Toba Batak Culture
Samosir Island offers a unique experience due to its location right in the middle of Lake Toba. This best lakes island in Sumatra is a massive volcanic lake that is considered one of the world’s natural wonders.
Samosir is not merely an island but the spiritual and cultural heart of the Batak Toba people. Here, travelers can explore various historical sites, such as the ancient kings’ tombs in Tomok and the stone court chairs in Huta Siallagan, which hold significant historical value.
Samosir’s natural landscape is breathtaking, with green hills surrounding the calm like Holbung Hill, blue waters of the lake. Riding a motorcycle or cycling around the island is the best way to enjoy the cool air and the picturesque rural scenery.
See Also:
- Things to do in Medan
- Things to do in North Sumatra
- Things to do in Berastagi
- Things to do on Lake Toba
- Things to do in Bukit Lawang
Visitors can also watch the Sigale-gale puppet show and purchase traditional ulos cloth, handwoven by local residents. The combination of Lake Toba’s geological grandeur and the richness of Batak traditions makes Samosir Island a must-visit destination in any North Sumatra tour package.
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9. Siberut Island, West Sumatra: Exploring the Primary Rainforest
Siberut Island is one of the most beautiful islands in Sumatra and the largest in the Mentawai Islands. The island is home to the protected Siberut National Park. Unlike other islands that focus on beach tourism, Siberut offers an immersive adventure experience deep within the primary tropical rainforest.
The island is home to the Mentawai people. This tribe still firmly upholds the traditions of their ancestors, including an animist belief system and intricate tattoo art.
Exploring Siberut often involves trekking through the humid forest, crossing rivers in traditional canoes, and staying in the indigenous longhouses known as Uma.
Visitors can learn how to prepare traditional medicines from forest plants and observe the process of making sago, a staple food. Although the terrain is quite challenging, the experience of living simply in the heart of the forest and interacting directly with one of Indonesia’s oldest cultures offers deeply memorable educational and spiritual value for true adventurers.
See Also:
- Sumatra Travel Guide
- 20 Things to do in Sumatra
- 10 Best Snorkeling in Sumatra
- 15 Volcanoes in Sumatra to Hike
- 15 Best Waterfalls in Sumatra
10. Pahawang Island, Lampung: A Colorful Marine Park
Pahawang Island has become one of the most popular snorkeling destinations in Lampung Province. What makes this top island in Sumatra so special is its man-made marine park, which is well-managed by the local community. As a result, it has become a thriving habitat for various types of coral reefs and tropical fish. One of the attractions most sought after by tourists is the chance to see clownfish, or “Nemo,” in their natural habitat in the shallow waters.
The snorkeling areas around Pahawang Besar and Pahawang Kecil feature calm and clear waters, making them ideal for both beginner divers and children. In addition to its underwater beauty, the island also features a sandbar phenomenon that emerges at low tide. This connects several small islands with stunning white sand trails.
Its relatively easy access from Jakarta via the Merak-Bakauheni Port makes it a favorite destination for weekend getaways for residents of the capital city who long for a tropical beach atmosphere.
See Also:
- 20 Beautiful Beaches in Sumatra
- 8 National Parks in Sumatra
- Best Lakes in Sumatra to visit
- 20 Best Places to Visit in Sumatra
- 10 River Rafting in Sumatra
11. Sirandah Island, West Sumatera: Full Facilities & Glamping Site
Sirandah Island is a tourist destination on the west coast of West Sumatra that offers an island getaway experience with more modern and comprehensive amenities. Unlike some of its neighboring beautiful islands in Sumatra, which remain untouched and lack facilities, Sirandah is fully equipped with glamping-style accommodations, villas, and a variety of amenities, ranging from restaurants to swimming pools. This makes it an ideal choice for family vacations or corporate events that require extra comfort.
12. Pamutusan Island, West Sumatra: Stunning Hilltop Views
Pamutusan Island is located near Sirandah Island and is often visited as part of an island-hopping tour package from the city of Padang. The island is known for its breathtaking panoramic views from the top of its main hill.
After a short 15-minute hike, visitors can enjoy a 360-degree view. The view also showcases the coastline of West Sumatra and the surrounding small islands, all encircled by turquoise-colored seawater.
The name “Pamutusan” refers to a unique phenomenon where, during high tide, the island appears to be split into two parts, only to reunite via a sandbar when the tide recedes. The waters around Pamutusan also feature healthy coral reefs, making it an excellent spot for snorkeling.
Its calmer atmosphere compared to the main islands makes it a favorite destination for those seeking tranquility and nature photography enthusiasts. It’s also perfect for anyone wanting to capture the beauty of Sumatra’s best tropical island landscapes from a bird’s-eye view.
See Also:
- 15 Best Hills in Sumatra
- 10 Best Mountains in Sumatra to Hike
- 50 Most Beautiful Places in Sumatra
- 12 Best Fishing Spots in Sumatra
- Golf Courses in Sumatra
13. Natuna Island, Riau Islands: A Rock Wonder in the North Sea
Natuna Island is located in the North Natuna Sea and is one of Indonesia’s premier destinations, offering pristine and largely untouched natural beauty. One of Natuna’s unique features is the presence of massive granite boulders scattered along the shoreline. These can be seen at the iconic “Alif Stone Park.” These ancient rock formations are naturally arranged and create a dramatic landscape as they meet the ocean waves.
See Also:
- Sumatra Hot Springs
- Best Time to Visit Sumatra
- Reasons to Visit Sumatra
- Caving in Sumatra
- How to get to Sumatra
- Best Sumatra Foods to try
14. Enggano Island, Bengkulu: The Exotic Beauty of the Outermost Island
Furthermore, Enggano Island is one of Indonesia’s outermost islands, located in the Indian Ocean and administratively part of Bengkulu Province. The island offers extraordinary exoticism due to its remoteness. This makes it a natural laboratory with a unique ecosystem rarely found elsewhere.
Extensive mangrove forests and pristine coral reefs make Enggano a dream destination for environmental researchers and adventurers seeking true natural purity.
15. Cubadak Island, West Sumatra: The Exclusive Village of Paradiso
Cubadak Island is often referred to as “Paradise Village” because it offers a highly exclusive and tranquil vacation experience in the Mandeh Bay area of West Sumatra. The island is widely known among international tourists thanks to its management, which prioritizes sustainability and absolute tranquility. Here, visitors can enjoy a high level of privacy as visitor numbers are typically limited, creating an atmosphere as if they have their own private island.
Other Tours:
- Batam Tour Package
- Labuan Bajo Tour Package
- Bromo Tour Package
- Jakarta Bandung Package
- Surbaya Tour Package
- Padang Tour Package
- Sumatra Overland Tour
- Sumatra Holiday Packages
- Bali Tour Package
- Lombok Tour Package
- Yogyakarta Tour Package
- Mentawai Tribe Tour
Best Time to Visit
| Season | Month | Remarks |
| Best Season | March – October | Calm seas, sunny weather, and excellent water visibility. |
| Rainy Season | November – February | Waves tend to be higher in some areas. |
FAQs (Frequently Asked Questions)
March to October is the best time to visit, as the weather is sunny and the seas tend to be calm.
It is generally safe, but for destinations like the Mentawai Islands, it is recommended to hire a local guide to ensure smooth logistics.
On larger islands like Bintan or Belitung, the signal is very stable. However, on remote islands like Enggano, the signal may be very limited.
Sumatra holds boundless marine riches, offering experiences that go far beyond ordinary beach vacations. From volcanic peaks to the depths of crystal-clear seas, every inch of this island possesses a unique character—whether in its dramatic natural landscapes or the cultural richness of its communities, which have preserved their authenticity. This diversity makes Sumatra a destination capable of satisfying all types of travelers—from those seeking tranquility to adrenaline junkies.
However, exploring these beautiful islands in Sumatra requires thorough preparation and deep local knowledge to ensure a smooth and safe journey. Plan your trip thoroughly with SWI Tour & Travel for an unforgettable tropical vacation experience. With the support of a professional team and curated packages, you can explore the wonders of Sumatra and create beautiful memories that will last a lifetime. Sumatra is not just a destination; it is an adventure waiting for you to discover.