Seromadopo - Halmahera
The Sisters. Now this is a proper Bay of Islands classic, a standalone rock that just screams "dive me". We love the way it splits into that narrow canyon around 10 metres, it's like a secret passage. Drift through there if the current allows, and it often does, the flow really brings in the action. We've seen schools of stripy and spotty so thick they’re a shimmering wall, and the black cod here are just magnificent, big and bold. On the seaward side, the drop-off disappears into the depths, but we usually stick to that inland slope down to 30m, poking around the boulders for nudibranchs like the Clown and Febelina. Keep an eye out for kingfish cruising past, especially in summer. Visibility can swing, but we've had some cracking 15m days here, making it perfect for divers who enjoy a bit of current and a lot of fish.
- Location
- Halmahera, Indonesia, Southeast Asia
- Coordinates
- -0.472500, 127.688700
- Type
- drift
Marine Protected Area: KKP3K Pulau Sali, Gane Barat Utara
Best Time to Dive in Halmahera
The warmest water temperatures in Halmahera occur in November, averaging 30.1°C. The coolest conditions are in August at 28.5°C.
Monthly Water Temperatures
- January: 29.0°C
- February: 28.8°C
- March: 29.1°C
- April: 29.5°C
- May: 29.9°C
- June: 29.6°C
- July: 29.0°C
- August: 28.5°C
- September: 28.6°C
- October: 29.4°C
- November: 30.1°C
- December: 29.8°C
Nearby Dive Sites in Halmahera
- Dive site
- Dive site
- Dive Site - 5-20m (reef)
- Dive Site
- Dive Site
- Giovannis Point (reef)
- Gonton Packet (reef)
- Hol Sulamadaha (reef)
- Igo Nyoga (cave)
- Kusu East Two Coconut (reef)
- Kusu South (wreck)
- Mimmas Point (reef)
- Mujiu (reef)
- Nabucco Outer Reef 1 (reef)
- Nabucco Spice Island (reef)
Nearest Dive Centres to Seromadopo
Marine Life in Halmahera
Home to 141 recorded species including 69 reef fish, 48 hard corals, 7 seagrass & algae, 4 clams & mussels, 3 crabs & lobsters, 2 sea cucumbers.
Notable Species
- Black sea cucumber (Holothuria atra) - Sea Cucumbers
- chocolate chip sea star (Protoreaster nodosus) - Starfish
- Blue-lined Surgeonfish (Acanthurus lineatus) - Reef Fish
- Staghorn coral (Acropora valida) - Hard Corals
- Staghorn coral (Acropora secale) - Hard Corals
- Bullet Mackerel (Auxis thazard) - Reef Fish
- Staghorn coral (Acropora nasuta) - Hard Corals
- Allison's Tuna (Thunnus albacares) - Reef Fish
- Staghorn coral (Acropora donei) - Hard Corals
- Staghorn coral (Acropora hyacinthus) - Hard Corals
- Branch coral (Acropora florida) - Hard Corals
- Staghorn coral (Acropora cerealis) - Hard Corals
- Staghorn coral (Acropora solitaryensis) - Hard Corals
- Staghorn coral (Acropora microclados) - Hard Corals
- Indian mackerel (Rastrelliger kanagurta) - Reef Fish
- Blenny (Istiblennius dussumieri) - Reef Fish
- Staghorn coral (Acropora humilis) - Hard Corals
- Staghorn coral (Acropora spicifera) - Hard Corals
- Staghorn coral (Acropora austera) - Hard Corals
- thalassia (Thalassia hemprichii) - Seagrass & Algae
Recommended Packing List for Seromadopo
Based on average water temperature of 29.3°C, currents 7 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