Dive Site: Komba Island

About Komba Island

Komba Island, an active volcanic island located in the Banda Sea, sits approximately 50 kilometers north of Lembata Island in East Nusa Tenggara Province. Rising dramatically from a depth of 3,000 meters, this remote seamount is a product of ongoing volcanic activity where the Australian and Sunda tectonic plates meet. Its unique topography features walls that plunge into the deep, adorned with brilliantly colored soft and hard corals that flourish against the dark volcanic rock. The nutrient-rich currents of the Banda Sea, driven by cold upwellings, create an incredibly fertile environment around Komba, supporting a wide spectrum of marine species. This abundance includes vibrant schools of reef fish, various pelagic species, and unique critters that adapt to the volcanic substrate. Divers can expect to encounter healthy reef ecosystems where marine life acts naturally, thanks to the site's remoteness and minimal human impact. Diving here offers an adventurous experience, typically accessed via liveaboard, allowing for exploration of its pristine and undisturbed underwater world. The active seamount fosters unique ecosystems, making Komba Island a distinctive site for those seeking encounters with diverse marine creatures in a dramatic setting.

Dive site facts: Komba Island

Depth

Unknown, likely beyond 40m

Current

Variable, can be strong

Visibility

15–30 m

Water temperature

26–29°C

Entry

Liveaboard tender

Level

Advanced recommended, current experience helpful

Dive type

Wall, seamount, pelagic

Region / port

Banda Sea, East Nusa Tenggara

Coordinates

6.0441° S, 125.7538° E

Conditions & Currents

Diving at Komba Island, like much of the Banda Sea, is influenced by nutrient-rich currents, which can vary. While many sites in the Banda Sea have mild currents and good visibility, some locations, especially those exposed to upwellings, can experience stronger flows. These currents, crucial for feeding the abundant marine life, necessitate experience in current diving. Divers should be prepared for varying conditions, and liveaboard itineraries will account for daily current strengths to optimize dive times. Water visibility generally ranges from 15 to 30 meters, contributing to excellent underwater viewing, while water temperatures typically remain stable between 26 to 29°C.

Marine life & sighting chances

Hard corals

common

Soft corals

common

Sea fans

common

Reef sharks

occasional

Eagle rays

occasional

Schooling fish

common

Sperm whale

rare

Dolphins

occasional

Killer whales

rare

Lyretail basslet

common

Purple queen

common

Pink basslet

common

Lori’s basslet

common

Scribbled basslet

common

Dive profile & how the dive runs

Diving Komba Island typically involves exploring the dramatic volcanic walls that plunge deep into the Banda Sea. Entry is usually by tender, often with a negative entry to descend quickly to the reef face. The dive profile follows the contours of the wall, allowing divers to observe the vibrant coral growth and diverse marine life inhabiting the rocky substrate. Currents can be present and may dictate a drift dive along the wall, offering opportunities to spot pelagics in the blue. Depths can extend beyond 40 meters, with varied bottom features. The turn point is determined by air consumption and no-decompression limits. Safety stops are typically conducted in the shallower sections of the reef, providing an additional chance to observe macro life or schooling fish before surfacing.

Underwater photography

For photography at Komba Island, a wide-angle lens is highly recommended to capture the dramatic underwater topography and the expansive schools of fish often present in the blue water. The vibrant soft and hard corals covering the volcanic walls make for excellent scenic shots. If currents allow for closer inspection, a macro lens can reveal the smaller, unique species adapted to this volcanic environment, such as various basslets. Due to potential depth and varying light, strobes are beneficial for color rendition and enhancing contrast. Maintaining excellent buoyancy is crucial, especially when currents are present, to protect the pristine corals and capture sharp images. Always approach marine life respectfully, avoiding disturbance.

Combine with nearby dive sites

• Manuk Ridge

  Known for sea snakes and pelagic encounters

• Nil Desperandum Atoll

  A pelagic hot-spot

• Pulau Hatta

  Features sloping reefs and large schools of fusiliers

• Koon

  Great wall dive with countless fish species

• Pantar

  Part of the Alor Archipelago, known for nutrient-rich straits

Getting there & logistics

Komba Island is exclusively accessible via liveaboard, due to its remote location in the Banda Sea. Trips often depart from hubs like Maumere (Flores Island) or Kalabahi (Alor Island), connecting with major Indonesian airports such as Bali (Denpasar International Airport). Liveaboard itineraries typically range from 7 to 13 days, combining Komba Island with other dive sites across the Alor Archipelago, the Pantar Strait, and other remote Banda Sea locations. There are no specific permits or park fees mentioned for Komba itself, but general marine park fees for the wider region may apply depending on the liveaboard operator. Divers should plan for domestic flights within Indonesia to reach the departure ports.

Safety & environment

The nearest recompression chamber is likely located in larger regional centers like Bali, meaning evacuation from Komba Island in the remote Banda Sea would be a significant logistical undertaking. Divers must carry comprehensive dive insurance that covers emergency medical treatment and evacuation, including air transport. Due to potentially strong currents and deep dive profiles typical of seamounts and walls, advanced dive training and experience with currents are highly recommended. Always adhere strictly to depth and no-decompression limits, conduct thorough buddy checks, and manage air consumption diligently. Pay close attention to liveaboard briefings and follow guide instructions, as conditions can change rapidly in this dynamic environment.

Who it suits — and who it doesn't

FAQ

Komba Island FAQ

Liveaboards diving Komba Island

These liveaboards may visit Komba Island on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Wellenreng

Indonesia

9 guests25 m

$427/day

Mari

Indonesia

14 guests32.2 m

$328/day

Pindito

Indonesia

16 guests37.79 m

$533/day

Mermaid II

Komodo, Indonesia

18 guests

$355/day

Gaia Love

Alor

20 guests

$554/day

Emperor Raja Laut

Raja Ampat, Indonesia

12 guests31 m

$482/day

Malaillo

Indonesia

14 guests45.57 m

$350/day

Damai II

Komodo, Indonesia

14 guests

$459/day

DUNE Aurora

Indonesia

18 guests

$344/day

Calico Jack

Indonesia

10 guests30 m

$398/day

Coralia

Indonesia

16 guests48 m

$547/day

Ilike

Indonesia

16 guests40 m

$298/day