Scuba Season
Underwater at Hamasakishita
Hairy Frogfish confirmed 1 year agoPeak season now

Hamasakishita

Tateyama / Sagami Bay · Japan

Hamasakishita is a sheltered shore dive site on the Tateyama waterfront, a gently sloping sand and rubble bottom from 3 to 18 metres that functions as prime nursery habitat for juvenile fish and invertebrates. The site is renowned for the density and variety of frogfish species found on sponges and encrusted boulders across the shallows, with painted, warty, and hairy frogfish all recorded in a single dive on good days. Ghost pipefish appear seasonally in the seagrass patches, and the night dive reveals an entirely different community including spider crabs, flatworms, and feeding cephalopods. The sheltered bay position makes this a reliable dive in almost any weather.

Conditions

Depth

3 to 18 m

Good for beginners

Current

Usually still

Can pick up on the edge

Visibility

4 to 8 m

Clearest in the calm season

Water

12 to 26°C

3mm wetsuit

Month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Water (°C)131213151719212221181513
Vis (m)688654434666
CurrentStillStillStillStillStillStillStillStillStillStillStillStill

Your chances of seeing each animal

See all species recorded here →

Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 7mm wetsuit or drysuit · cold water
    • Dive computer