W-Achi - Ishigaki & Yaeyama
W-Achi, off Ishigaki, is one of those sites that just feels… different. It's not about big pelagics or dramatic drop-offs, though we've seen our share of reef sharks cruising by. What we really love here is the sheer density and variety of corals. You're descending into this vibrant, intricate cityscape of hard corals: massive tables of plate coral, delicate birdsnest structures, and thick stands of cauliflower coral pushing up against each other. It’s an almost overwhelming display of colour and texture. Keep an eye out for the smaller inhabitants too; the nudibranchs here are fantastic, often nestled amongst the sponges and branching corals. We’ve spotted countless cowries, little jewels tucked into crevices. This site is especially rewarding for photographers who appreciate macro life and the complex beauty of a healthy coral reef. We'd suggest going on a sunny day if you can; the light really brings out the fluorescence in some of the green and yellow corals, making the whole place glow. It’s a gentle dive, generally without strong currents, making it perfect for lingering and exploring every nook.
- Location
- Ishigaki & Yaeyama, Japan, East Asia
- Coordinates
- 24.866575, 125.160060
Marine Protected Area: 伊良部
Nearby Dive Sites in Ishigaki & Yaeyama
- Antoniogaudei
- Antonio Gaudi - 26m
- Cross Hole - 24m (wreck)
- Crystal Beach - 17m
- Crystal Park - 11m (reef)
- Emperor’s Chair - 17m
- Hanadainone
- Hanazawa Drop - 16m (wall)
- Hateruma Island - 18m
- IOT - 18m
- Ishigaki double reef (reef)
- Kaiho Sports Club - 2m
- Kanokawa Nakanose - 17m
- Kinmenone - 18m
- Kohamajima Island - 18m
Nearest Dive Centres to W-Achi
- BLUE SEASON IRIOMOTE - ["PADI"]
- Blue Water
- Diving School Marea Miyakojima - ["PADI"]
- DIVING SERVICE HEKIKAI
- MARINECLUB
- MOANA Diving College ISHIGAKIJIMA - ["PADI"]
Marine Life in Ishigaki & Yaeyama
Home to 442 recorded species including 289 reef fish, 119 hard corals, 8 seagrass & algae, 6 sea cucumbers, 6 sea snails & nudibranchs, 4 crabs & lobsters.
Notable Species
- thalassia (Thalassia hemprichii) - Seagrass & Algae
- seagrass (Halophila ovalis) - Seagrass & Algae
- cymodocea (Cymodocea rotundata) - Seagrass & Algae
- Species code: Ea (Enhalus acoroides) - Seagrass & Algae
- Species code: Hp (Halodule pinifolia) - Seagrass & Algae
- Fluorescence grass coral (Galaxea fascicularis) - Hard Corals
- halodule (Halodule uninervis) - Seagrass & Algae
- Staghorn coral (Acropora nasuta) - Hard Corals
- Stony coral (Porites cylindrica) - Hard Corals
- Honeycomb coral (Favites abdita) - Hard Corals
- Corrugated coral (Pavona varians) - Hard Corals
- Thin birdsnest coral (Seriatopora hystrix) - Hard Corals
- Stony coral (Porites lutea) - Hard Corals
- Staghorn coral (Acropora tenuis) - Hard Corals
- Cauliflower coral (Pocillopora verrucosa) - Hard Corals
- Smooth cauliflower coral (Stylophora pistillata) - Hard Corals
- Lesser star coral (Cyphastrea microphthalma) - Hard Corals
- Staghorn coral (Acropora humilis) - Hard Corals
- Encrusting pore coral (Montipora aequituberculata) - Hard Corals
- Staghorn coral (Acropora aspera) - Hard Corals