About Kubu Reef
Kubu Reef, located just a few kilometers north of Tulamben, is a celebrated dive site in Bali known for its vibrant coral gardens and extensive artificial reefs. It provides a stunning underwater landscape with a shallow entry leading to a gently sloping reef, making it accessible for divers of all experience levels, including snorkelers. The site is characterized by an abundance of soft and hard corals, creating a rich habitat for a wide array of marine species. Beyond the natural reef, Kubu features interesting artificial structures such as pinnacles and Buddha statues, which are now heavily colonized by corals and serve as additional homes for marine life. The topography transitions from a vibrant coral garden in the shallows to a sloping reef that descends to greater depths, offering different environments to explore. Sandy patches along the slope are home to unique critters. Marine life here is prolific, with frequent sightings of nudibranchs and various macro critters that thrive among the corals and artificial reefs. Larger species like Napoleon wrasses, eagle rays, barracudas, and even groups of bumphead parrotfish make occasional appearances. The site is particularly renowned for its macro photography opportunities due to the diversity of small, fascinating creatures. Diving at Kubu Reef typically involves a shore entry, navigating through the shallow coral garden before descending along the slope. Its gentle conditions and rich biodiversity make it an ideal spot for both leisurely recreational dives and focused underwater photography sessions, promising a rewarding experience for every visitor.
Highlights
Season calendar
Apr – Oct (Apr–Nov)
The dry season brings calm seas, 25–30m+ visibility, and strong currents that attract mantas, sharks, and pelagics to Komodo. Alor offers pristine reef diving with 20–40m visibility. Bali's Nusa Penida delivers Mola Mola encounters from July to October. Water temperatures range from 24–28°C — a 3mm or 5mm wetsuit is recommended.
Nov – Mar (Oct–Apr)
Raja Ampat peaks during the wet season with calmer seas, plankton-rich waters attracting manta rays, and excellent biodiversity. Water is a warm 28–30°C with 15–25m visibility. The Banda Sea opens its rare expedition window from September to December, with hammerhead sharks and pristine seamounts. Lembeh Strait offers world-class muck diving year-round. A 3mm wetsuit is sufficient.
Dive site facts: Kubu Reef
- Depth
- 6–18 m
- Typical dive
- 12 m, 50–60 min
- Current
- Mild
- Visibility
- 12–30 m
- Water temperature
- 26–29°C
- Entry
- Shore
- Level
- Open Water Diver
- Dive type
- Reef, Macro
- Night dive
- Possible
- Region / port
- Tulamben, East Bali
- Coordinates
- -8.29, 115.588
Conditions & Currents
Kubu Reef typically experiences mild currents, which contribute to a relaxed diving environment suitable for various skill levels. Despite the general calm, divers should always heed local guide and captain briefings on daily conditions, as tidal influences can subtly alter current strength and direction. As a shore dive, entry and exit procedures must be confirmed beforehand, ensuring a smooth transition into and out of the water. Visibility at Kubu Reef is generally good, ranging from 12 to 30 meters, though it can be affected by rainfall during the wet season. Water temperatures remain consistently warm, between 26-29°C, ensuring comfortable dive durations without the need for thick exposure suits. Overall, the conditions at Kubu Reef are accommodating, allowing for extended bottom times and thorough exploration.
Marine life & sighting chances

Nudibranchs
common
Corals
common
Napoleon Wrasse
occasional
Eagle Rays
occasional
Barracudas
occasional
Octopus
occasional
Bumphead Parrotfish
occasional
Blue-spotted Stingrays
occasional
Schools of reef fish
common
Moray Eels
occasional
Pygmy Seahorse
occasionalDive profile & how the dive runs
Diving at Kubu Reef typically begins with a shore entry into a shallow coral garden, often no deeper than 6 meters. From there, you gently descend along a vibrant slope, rich with soft and hard corals, interspersed with interesting artificial reefs. The main reef extends to about 18 meters, making it a comfortable depth for Open Water divers. As you navigate the reef, you'll encounter numerous small pinnacles and unique structures like Buddha statues, all teeming with macro life. The dive plan often involves exploring this slope, allowing divers to appreciate the diverse marine ecosystem. The turn point is usually dictated by air consumption or bottom time, maintaining conservative limits. Safety stops are conveniently performed in the shallow, colorful coral garden near the entry point, offering a final opportunity to spot critters.
Underwater photography
Kubu Reef is a paradise for underwater photographers, particularly those interested in macro subjects. The abundance of nudibranchs, small critters, and intricate coral formations makes a macro lens an excellent choice for capturing detailed shots. Wide-angle lenses can also be effective for showcasing the extensive coral gardens and artificial structures, especially the Buddha statues. Due to the mild currents and often good visibility, maintaining stable buoyancy is achievable, allowing for precise framing. External strobes or video lights are highly recommended to bring out the vibrant colors of the reef and its inhabitants. Pay close attention to buoyancy to avoid disturbing the delicate coral and sandy bottoms, ensuring the marine life remains pristine for future photographers.
Combine with nearby dive sites
- Tulamben Drop-Off
A vertical wall dive known for pelagic sightings and diverse corals.
- USAT Liberty Wreck
Bali's most famous wreck, teeming with marine life and accessible from shore.
- Seraya Secrets
A muck diving site renowned for rare and unusual macro critters.
- Boga Wreck
A purpose-sunk artificial wreck with an army Jeep and other artifacts.
Getting there & logistics
Accessing Kubu Reef typically involves a drive of approximately two hours from the main tourist hubs in South Bali, such as Sanur. The journey itself is scenic, passing through local villages, rice paddies, and near Mount Agung. Most dive operators in Bali offer day trips to Kubu, which usually include transportation, two dives, all necessary gear, lunch, and a professional guide. While there are no specific marine park fees mentioned for Kubu Reef, it's common for these to be included in the dive package. Divers often combine a trip to Kubu Reef with dives at the nearby USAT Liberty Wreck or other Tulamben sites, as they are logistically close. For longer stays, accommodation can be found in the quieter Kubu or Tulamben areas, allowing for multiple days of diving and exploration.
Safety & environment
While Kubu Reef is generally considered beginner-friendly due to mild currents and shallow depths, adhering to dive safety protocols is paramount. All divers should ensure they have appropriate dive insurance that covers emergency medical treatment and evacuation. The nearest recompression chamber is located in Denpasar, requiring a potentially lengthy overland transfer in case of a serious incident. Divers should always plan their dives conservatively, staying within their certification limits and closely following the instructions of their dive guides. As a shore dive, it's crucial to confirm entry and exit procedures and any backup plans with your local operator. Responsible diving practices, such as maintaining excellent buoyancy and avoiding contact with marine life, are essential to protect the delicate ecosystem.
Who it suits, and who it doesn't
Suited for
- Open Water certified divers
- Divers interested in macro photography
- Beginner divers seeking easy conditions
- Snorkelers
- Divers looking for vibrant coral gardens
Less suited for
- Divers seeking strong currents or pelagic-heavy dives
- Those uninterested in macro life
- Divers primarily focused on deep wreck penetration
FAQ
Kubu Reef FAQ
Is Kubu Reef suitable for beginner divers?
What kind of marine life can I expect to see at Kubu Reef?
Are there any artificial structures at Kubu Reef?
How deep is Kubu Reef?
Can I do night diving at Kubu Reef?
What are the typical water conditions at Kubu Reef?
Why dive Kubu Reef from a liveaboard?
Kubu Reef is one of Bali's signature dive sites. A liveaboard sleeps you on the water and puts you in the water for three to four guided dives per day, including dawn and night dives that day-boat operators rarely offer. You skip the daily commute back to port and reach quieter, less-crowded sites in the same region on a single trip.
Below are the liveaboards that include Kubu Reef on their Bali itineraries.
Liveaboards diving Kubu Reef
These liveaboards may visit Kubu Reef on selected itineraries, the exact dive sites depend on departure, weather and conditions.

Naga Biru
Indonesia

Ilike
Indonesia

Mermaid I
Alor

Sunshine Liveaboard
Indonesia

Tiare Cruise
Indonesia
Dive sites similar to Kubu Reef
Abila is a notable dive site located within the Alor Islands Marine Park, an area celebrated for its rich marine biodiversity due to its position in the Coral Triangle.
- Suitable for
- Beginner
- Current
- Mild
- Access
- Liveaboard only
- Depth
- —
- Theme
- Reef
Adonara Channel
Alor
Adonara Channel stands as one of Alor's most iconic dive sites, celebrated for its dynamic currents and exceptionally rich biodiversity.
- Suitable for
- Advanced
- Current
- Strong
- Access
- Liveaboard or dayboat
- Depth
- 10–40 m
- Theme
- Drift / Wall
Adonara Wall
Indonesia
Adonara is an Indonesian island dive site, renowned for its vibrant underwater topography characterized by submerged seamounts.
- Suitable for
- Intermediate
- Current
- Strong
- Access
- Liveaboard or dayboat
- Depth
- 5–35 m
- Theme
- Seamount / Wall
Agnay Fish Sanctuary
Philippines
Agnay Fish Sanctuary is nestled in a sheltered bay near the village of Agnay in Romblon, a province celebrated for its rich marine biodiversity.
- Suitable for
- Beginner
- Current
- Mild
- Access
- Dayboat
- Depth
- 9–18 m
- Theme
- Reef
Ai Island Reef
Banda Sea
Ai Island Reef, nestled within the Banda Sea, offers a remarkable diving experience characterized by its rich marine biodiversity and varied underwater topography.
- Suitable for
- Beginner
- Current
- Strong
- Access
- Liveaboard only
- Depth
- 3–30 m
- Theme
- Reef / Seamount
Akitsushima
Philippines
The Akitsushima is a distinguished World War II Japanese seaplane tender, sunk in September 1944 during an American air raid in Coron Bay, Palawan.
- Suitable for
- Advanced
- Current
- Strong
- Access
- Dayboat
- Depth
- 22–38 m
- Theme
- Wreck