Sangeang Api Island

Rising dramatically from the sea northeast of Sumbawa, Sangeang Api is an extraordinary volcanic island known for its rugged landscapes and fascinating underwater environment. The active volcano creates a distinctive marine setting, where black volcanic sand, colourful coral formations, and underwater gas bubbles provide an unforgettable diving experience. Visitors can explore remarkable marine biodiversity, photograph unusual underwater habitats, and admire the island's imposing volcanic slopes from the surrounding waters. Often included in extended liveaboard expeditions between Komodo and Sumbawa, Sangeang Api offers a rewarding adventure for experienced divers and travellers drawn to remote natural wonders.

Highlights

Sangeang Api Volcano

Volcanic Island

Black Sand Coast

Liveaboard Expedition

Coral Reefs

Things To Do

Dive at Hot Rocks & Bubble Reef

Discover an extraordinary underwater landscape where streams of volcanic gas bubbles rise through dark sand and colourful coral formations.

Explore Black Sand Macro Diving

Search for nudibranchs, frogfish, ghost pipefish, and other fascinating small marine creatures against the island's volcanic seabed.

Discover Sangeang's Coral Reefs

Explore vibrant hard and soft corals, volcanic rock formations, and diverse reef ecosystems during guided dives.

Admire Sangeang Api's Volcanic Landscapes

Experience spectacular views of the island's towering volcanic peaks, rugged coastline, and dramatic geological formations from safe offshore locations.

Discover Traditional Island Communities

Learn about local coastal traditions and boatbuilding heritage through prearranged village visits, where access is permitted.

Experience Underwater Volcanic Photography

Capture striking images of gas bubbles, black volcanic sand, unusual marine creatures, and colourful coral formations.

Join an Extended Liveaboard Expedition

Explore the remote waters between Komodo and Sumbawa aboard a liveaboard vessel, combining volcanic scenery with exceptional diving opportunities.

Photos

Sangeang Api Island

Frequently Asked Questions

Sangeang Api is an active volcanic island northeast of Sumbawa in West Nusa Tenggara, Indonesia. It lies outside Komodo National Park but is visited on selected extended diving and liveaboard itineraries.

Sangeang Api is famous for its black volcanic sand, underwater gas bubbles, colourful reefs, and exceptional macro photography opportunities. Sites such as Hot Rocks offer an unusual combination of volcanic geology and marine biodiversity.

Some sites may be suitable for certified beginners under favourable conditions, while others require more experience. The remote location, variable currents, and volcanic hazards make professional dive supervision and careful site selection essential.

Mount Sangeang Api is an active volcano, and trekking is a demanding activity that depends on official access restrictions and volcanic conditions. Any permitted ascent requires experienced local guides, appropriate equipment, and prior safety assessment.

April to November is generally a popular period for diving expeditions around Sumbawa and Komodo. However, access depends on sea conditions, volcanic activity, and operator safety assessments. Visitors should check official volcanic advisories through MAGMA Indonesia before planning a visit.

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