✦ From NUM's directory · updated 2026-09-24

All 39 dive shops in Tokyo, mapped.

NUM's directory maps 39 dive shops in Tokyo, city storefronts and schools that drive their divers out to the Izu Peninsula, and what that means for the season.

Where the concierge points people first

The rest of the dive shops in Tokyo — every one we hold

Tokyo's dive shops are in offices; the diving is somewhere else

Almost every Tokyo dive shop works the same way: a shop or classroom in the city, and weekend trips by van or train to the Izu Peninsula, where sites such as Izu Oceanic Park on the east coast and Osezaki on the west coast sit within a few hours' drive. The water is warmest from about August to October and drops to the mid-teens Celsius in late winter, when drysuits are the norm. The farther option is the Ogasawara Islands, legally part of Tokyo but reached only by a ferry of roughly 24 hours each way.

Ask NUM which Tokyo dive shop runs trips to Izu this month

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