Batu Bolong - Komodo
Batu Bolong, or 'Hollow Rock,' is a pinnacle that truly delivers on its reputation in Komodo. We drop in on the sheltered side, usually the south, where the rock offers a momentary break from the channels’ infamous currents. The walls are a tapestry of hard corals and sponges, surprisingly untouched, likely due to the sheer force of water that sweeps through here. What really gets us, though, is the fish: schools of fusiliers and snapper form shimmering curtains, and often we’ll spot reef sharks cruising the blue. It’s a lively, exhilarating dive, best suited for those comfortable with drift diving and keeping an eye on their buoyancy.
- Location
- Komodo, Indonesia, Southeast Asia
- Coordinates
- -8.533300, 119.583300
Marine Protected Area: Komodo
Best Time to Dive in Komodo
The warmest water temperatures in Komodo occur in November, averaging 30.3°C. The coolest conditions are in August at 27.9°C.
Monthly Water Temperatures
- January: 29.2°C
- February: 28.9°C
- March: 29.4°C
- April: 29.7°C
- May: 29.4°C
- June: 28.9°C
- July: 28.1°C
- August: 27.9°C
- September: 28.2°C
- October: 29.2°C
- November: 30.3°C
- December: 30.2°C
Nearby Dive Sites in Komodo
- 3 Sisters
- Amelia (reef)
- ARDADELDALI - 0m (wreck)
- Bahuluang Wall (reef)
- Batu Bolong Dive Site
- Batu Bolong Komodo (reef)
- Batu Bolong Komodo (reef)
- Batu Tiga (drift)
- Batu Tiga (reef)
- Batu Tiga Dive Site
- Bhayangkara (reef)
- Bhayangkara
- Bidadari (reef)
- Bidadari (reef)
- blue fish (reef)
Nearest Dive Centres to Batu Bolong
Marine Life in Komodo
Home to 220 recorded species including 95 reef fish, 92 hard corals, 13 seagrass & algae, 5 sharks & rays, 4 sea cucumbers, 3 clams & mussels.
Notable Species
- Boring Clam (Tridacna crocea) - Clams & Mussels
- Green Turtle (Chelonia mydas)
- Small giant clam (Tridacna maxima) - Clams & Mussels
- Staghorn coral (Acropora hyacinthus) - Hard Corals
- Staghorn coral (Acropora solitaryensis) - Hard Corals
- thalassia (Thalassia hemprichii) - Seagrass & Algae
- seagrass (Halophila ovalis) - Seagrass & Algae
- Black sea cucumber (Holothuria atra) - Sea Cucumbers
- Species code: Ea (Enhalus acoroides) - Seagrass & Algae
- Narrow-barred Spanish mackerel (Scomberomorus commerson) - Reef Fish
- chocolate chip sea star (Protoreaster nodosus) - Starfish
- Pinkfish (Holothuria edulis) - Sea Cucumbers
- Bristle-toothed Surgeonfish (Ctenochaetus striatus) - Reef Fish
- Common Mushroom Coral (Fungia fungites) - Hard Corals
- Bowl coral (Halomitra pileus) - Hard Corals
- Blue-lined Surgeonfish (Acanthurus lineatus) - Reef Fish
- Fluted clam (Tridacna squamosa) - Clams & Mussels
- halodule (Halodule uninervis) - Seagrass & Algae
- Feather Coral (Polyphyllia talpina) - Hard Corals
- Species code: Si (Syringodium isoetifolium) - Seagrass & Algae
Recommended Packing List for Batu Bolong
Based on average water temperature of 29.1°C, currents 5 cm/s.
- Shorty or Rashguard - warm 29°C water needs minimal exposure protection
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories