Dive Site: Biatabang

About Biatabang

Biatabang, also known as "The Hanging Gardens of Babylon," is a highly regarded dive site in Alor, celebrated for its unique topography and thriving marine ecosystems. This site offers an immersive wall diving experience, featuring dramatic overhangs densely covered with a magnificent array of soft corals and sponges. It's a popular choice for initial check dives due to its accessibility and visual appeal, providing a gentle introduction to Alor's underwater wonders. The site's topography transitions from lush coral gardens on the wall to deeper sections, where larger reef fish are commonly observed. The rich coral growth creates numerous habitats for smaller marine life, including various critters that blend into the vibrant surroundings. Above the waterline, local fishermen can often be seen preparing traditional bamboo fish traps, adding a cultural element to the scenic beauty. Alor is situated within the Coral Triangle, a region renowned for its exceptional marine biodiversity, which is evident at Biatabang. The site benefits from the nutrient-rich waters that sustain its healthy reefs, making it a productive environment for both macro and wide-angle subjects. Divers can expect a dynamic experience, enjoying the interplay between reef inhabitants and the occasional larger species. Diving here typically involves exploring the coral-blanketed wall and its various nooks and crannies. The conditions are generally manageable, though Alor's waters are influenced by strong tidal movements, which contribute to the area's rich marine life. Biatabang offers a memorable dive for those seeking healthy corals and a chance to observe a variety of reef dwellers in a visually stunning setting.

Dive site facts: Biatabang

Depth

Up to 30 m

Current

Varies, can be moderate

Visibility

15–40 m

Water temperature

24–30°C

Entry

Boat

Level

All levels, current experience beneficial

Dive type

Wall, reef, wide-angle

Region / port

Alor, Indonesia

Coordinates

8.2231° S, 124.5595° E

Conditions & Currents

Diving in Alor is significantly shaped by strong tidal movements within the Pantar Strait, a natural feature that enriches the marine environment. While Biatabang is noted as a popular choice for check dives, implying generally manageable conditions, currents can vary and are a consistent element of diving in the region. Stronger currents are typically observed around new and full moon phases, potentially leading to dynamic drift dives and increased chances for pelagic encounters. Visibility at Alor dive sites ranges from approximately 15 meters during the rainy season to an impressive 40 meters in the dry season, particularly from June to October, though this can fluctuate. Water temperatures can vary, occasionally dropping to 24-26°C in southern sites like Halerman, but are generally around 27-30°C. Divers should be prepared for potential thermoclines, especially in deeper or southern

Marine life & sighting chances

Bumphead parrotfish

common

Napoleon wrasse

common

Leaf scorpionfish

occasional

Nudibranchs

occasional

Pygmy blue whales

rare

Manta rays

occasional

Whale sharks

rare

Reef sharks

occasional

Dive profile & how the dive runs

Dives at Biatabang typically involve a boat entry, often used as a check dive due to its accessible conditions. The profile focuses on exploring the vibrant wall, famously known as "The Hanging Gardens of Babylon," which descends to about 30 meters. Divers will spend time observing the intricate soft coral and sponge growth on the overhangs, which harbor leaf scorpionfish and nudibranchs. The dive progresses along the wall, allowing opportunities to spot larger reef fish such as bumphead parrotfish and Napoleon wrasse. The turn point is determined by air consumption and bottom time, with an ascent following the contour of the reef. The safety stop is generally conducted in the shallower, coral-rich sections of the wall, enjoying the colorful reef fish before surfacing near the boat.

Underwater photography

Biatabang offers excellent opportunities for both wide-angle and macro photography. For the sprawling soft coral overhangs and schools of bumphead parrotfish or Napoleon wrasse, a wide-angle lens is ideal. Use strobes to bring out the true colors of the vibrant corals and marine life, ensuring even lighting across the wall. For macro enthusiasts, a macro lens will capture the details of leaf scorpionfish, nudibranchs, and other small critters found within the sponges and crevices. Good buoyancy control is crucial to avoid damaging the delicate corals, especially when getting close for macro shots. Be mindful of your fin kicks and maintain a respectful distance from marine inhabitants. The natural light penetration in shallower areas also makes for striking ambient light photography of the reef structure.

Combine with nearby dive sites

• Bama Wall

  A dramatic wall exceeding 40 meters, rich in life and color.

• Pasir Merah

  Known as Red Sand, featuring volcanic red slopes and bubbling gas vents.

• Munaseli

  A deep dive with medium to strong currents, attracting large fish and sharks.

• Goa Wolang

  Features two large caverns, one with an air pocket and another with a swim-through.

• Kalabahi Bay

  A prime muck diving site for macro enthusiasts with unique volcanic sand.

• Alcatraz

  Notable for its pink-hued soft coral gardens.

Getting there & logistics

Access to Biatabang and other Alor dive sites typically begins by flying into Alor Island (ARD) or Kupang (KOE) on West Timor, followed by a domestic flight or ferry to Alor. Most dive operations, whether land-based resorts or liveaboards, offer transfers from the airport or ferry terminal. Dive trips to Alor usually range from 7 to 10 days, allowing divers to explore a variety of sites across different environments. Alor is considered a remote location, and dive operations often combine various dive types, from current-rich walls like Biatabang to muck sites in Kalabahi Bay. Permit and park fees, usually included in package costs, support the Alor Islands Marine Park. Given its remote nature, careful planning and pre-booking with a reputable dive operator are essential.

Safety & environment

While diving at Biatabang is generally suitable for various skill levels, all divers in Alor should prioritize safety due to the region's strong currents and remote location. The nearest recompression chamber is typically in Denpasar, Bali, requiring a potentially lengthy evacuation process. Comprehensive dive insurance, including coverage for medical emergencies and evacuation, is therefore highly recommended and often mandatory. Site-specific hazards at Biatabang primarily involve understanding and managing currents, which can vary in strength. Always follow your dive guide's instructions regarding entry techniques, dive profiles, and current management. Maintain excellent buoyancy control to protect the delicate corals, and carry a surface marker buoy (SMB) for safety in case of separation or drift. Due to the remote nature of Alor, emergency services may be limited, emphasizing self-sufficiency and adherence to safe diving practices.

Who it suits — and who it doesn't

FAQ

Biatabang FAQ

Liveaboards diving Biatabang

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

Naga Biru

Indonesia

12 guests40 m

$274/day

Jaya

Indonesia

14 guests23 m

$280/day

Komodo Aggressor

Komodo, Indonesia

16 guests29 m

$312/day

Blue Manta

Indonesia

20 guests45 m

Gaia Love

Alor

20 guests

$554/day

Emperor Raja Laut

Raja Ampat, Indonesia

12 guests31 m

$413/day

Coralia

Indonesia

16 guests48 m

$563/day

Ilike

Indonesia

16 guests40 m

$298/day

Mermaid I

Alor

15 guests28 m

$372/day

Mutiara Laut

Indonesia

14 guests46 m

$741/day

Neptune One

Indonesia

16 guests38 m

$332/day

Dewi Nusantara

Indonesia

18 guests57 m

$599/day