Mikura Island
Also known as: Mikurajima
Best time to dive
April to October; June to August
What you might see
- DolphinReliably seen
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Open Water
Snorkelling
Snorkel-friendly - yes - this is fundamentally a snorkel/skin-diving activity, not scuba
Safety notes
rough seas, ferry cancellations common depending on sea conditions, sheer cliffs around the island, strict no-touch/no-chase/no-flash rules to protect dolphins
Permits & fees
no general entry permit found; dolphin swim add-on fee approx. ¥10,000 + tax per session (per mikurajima.net); equipment rental fees separate (wetsuit ~¥2,200, fins ~¥550); guide must be a certified Tokyo Nature Guide
Permits and operators change - confirm before booking.
Location
Nearest hub: Mikurajima
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.