Nakanojima Channel
Protected Area
伊良部
Why dive here
With 428+ marine species recorded in the area - including bull sharks, manta rays, mobula rays (devil rays), seahorses and sea turtles - Nakanojima Channel offers some of Ishigaki & Yaeyama's richest drift diving. Water ranges 23-30°C, warmest July, August, September.
Nakanojima Channel, just off Ishigaki, is one of those sites that always delivers. We love drifting through here, letting the current do the work. It’s not just a pass through; the walls on either side are packed with coral. You’ll see big patches of Pachyseris, looking like giant overlapping plates, alongside brain root coral and smooth cauliflower coral. It's a great spot for macro life, too. Keep an eye out for those colourful bicolor nudibranchs clinging to the walls. We've found the current can pick up quite a bit, particularly around new and full moons, so it's a site that suits divers comfortable with a bit of movement. Visibility here tends to be consistently good, often pushing past 20 metres, so you get a great sense of the channel opening up before you. We'd suggest going in the late morning or early afternoon when the sun is high; it really makes the subtle colours of the corals pop.
Safety Notes
Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.
Nearest Dive Centres to Nakanojima Channel
Dive shops near Nakanojima Channel
Pipeline
DIVING SERVICE HEKIKAI
Diving School Marea Miyakojima
MARINECLUB
Reviews for Nakanojima Channel
Conditions
Ocean conditions, forecast and tides for Nakanojima Channel
Nakanojima Channel Ocean Conditions
Monthly averages for Nakanojima Channel, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (24.6, 124.35) (10km away)
October Averages
Sea Temperature
29°C
84°F · Range: 27–30.4°C
Air Temperature
26°C
79°F
Wind Speed
7.74 m/s
15.0 knots
Atmospheric Pressure
1013.6 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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