– Kakaban Island: Renowned for its unique jellyfish lake.
– Derawan Island: Home to sea turtles and colorful fish.
– Sangalaki Island: Famous for manta rays and diverse coral gardens.
Overview of the Derawan Islands

The Derawan Islands, located in East Kalimantan, Indonesia, comprise several islands including Derawan, Kakaban, Sangalaki, and Maratua. These islands are part of a marine conservation area and are renowned for their pristine waters, rich biodiversity, and diverse ecosystems. The best time for snorkeling is during the dry season, which runs from April to October, offering optimal visibility and marine encounters.
Top Snorkeling Spots in the Derawan Islands
Kakaban Island
Kakaban Island is famous for its unique jellyfish lake, which hosts millions of non-stinging jellyfish. Snorkelers can glide through the clear waters and observe these fascinating creatures up close. Besides jellyfish, the surrounding reefs are home to colorful fish and vibrant corals. The best snorkeling area is located near the lake’s entrance, where visibility is typically excellent year-round.
Derawan Island
Derawan Island serves as a prime spot for snorkelers due to its accessible reefs and abundant marine life. The waters around this island are teeming with sea turtles, parrotfish, and clownfish among the corals. Key snorkeling sites include the areas around the jetty and the surrounding fringing reefs. The average water temperature ranges from 28°C to 30°C, providing a comfortable snorkeling experience.
Sangalaki Island
Sangalaki Island is known for its manta ray encounters. Snorkelers can often see these creatures gliding through the water, especially from April to December. The island’s coral gardens are also rich in biodiversity, attracting various fish species. The best snorkeling sites are located on the eastern side of the island, where nutrient-rich waters support vibrant marine ecosystems.
Maratua Island
Maratua Island features some of the most beautiful coral reefs in the Derawan Islands. Snorkelers can explore the underwater landscapes filled with hard and soft corals, as well as an range of marine species. The area known as “The Channel” is particularly popular, where the currents bring in diverse fish species. With clear visibility, snorkelers can enjoy a vibrant underwater show.
Gili Lawa and Gili Mangsit
These small islands are excellent for snorkeling, offering less crowded experiences. The waters around Gili Lawa and Gili Mangsit are teeming with life, including reef sharks and turtles. The coral formations are pristine, providing a perfect backdrop for underwater photography. These spots are ideal for both beginners and experienced snorkelers, with calm waters and abundant marine life.
Practical Information for Snorkeling in the Derawan Islands
When planning your snorkeling trip to the Derawan Islands, consider the following practical information:
- Best Time to Visit: The best months for snorkeling are from April to October, during the dry season when visibility is optimal.
- Equipment Rental: Most resorts and tour operators offer snorkeling gear rentals, including masks, fins, and snorkels.
- Guided Tours: Consider joining guided snorkeling tours to access the best spots and learn about the marine ecosystem.
Conservation and Responsible Snorkeling
While enjoying the marine beauty of the Derawan Islands, it’s essential to practice responsible snorkeling. Avoid touching or stepping on coral reefs, as they are delicate ecosystems. Use reef-safe sunscreen to protect marine life and dispose of waste properly. Following these practices helps preserve the natural beauty of the islands for future generations.
Explore Diverse Snorkeling Spots in the Derawan Islands
Discover the Derawan Islands’ vibrant marine life, from Kakaban Island’s jellyfish lake to Sangalaki’s graceful manta rays. Each spot offers its own unique experience, perfect for snorkelers of all levels. Enhance your adventure with derawanyacht for exclusive yacht charters and custom itineraries.
Plan your visit during peak seasons for the best conditions, and respect local conservation efforts to preserve these striking underwater landscapes. For specific planning tips, consult Derawan Yacht or Derawan Yacht.