Scuba

What It Feels Like

Book guided freshwater diving through a provider that accepts your certification, cold-water experience and briefing language. OCEAN DAYS has a Shikotsuko Onsen base, corroborated by Chitose City. Grande Polpo publishes a separate Lake Shikotsu two-beach itinerary. Both are ordinary recreational offers, distinct from the conservation cleanup program.

Signature Sites

Start Here

Lake Shikotsu guided shore route
Grande Polpo's lake-specific beach-diving offer supports shore access as a trip style.
Chitose River headwaters
A guided river option beside the lake base.

Planning Playbook

Operator Checklist

Send certification, recent dive history, drysuit experience and sizes before booking. Request the planned entry, depth, emergency oxygen arrangements, transport and full equipment quote. Introductory scuba at OCEAN DAYS is suspended for 2026. Grande Polpo's lake table omits May and October; ask about those months rather than assuming either closure or availability. Equipment rental, instruction and transfers may change the total.

Conditions Fallback

Send certification, recent dive history, drysuit experience and sizes before booking. Request the planned entry, depth, emergency oxygen arrangements, transport and full equipment quote. Introductory scuba at OCEAN DAYS is suspended for 2026. Grande Polpo's lake table omits May and October; ask about those months rather than assuming either closure or availability. Equipment rental, instruction and transfers may change the total.

Avoid

Do not ignore cold water and sudden depth advisories from local operators.

Lake Shikotsu Activity Planning

Scuba

What It Feels Like

Signature Sites

Start Here

Planning Playbook