Quellen · Destination Guide

Izu Oshima

Volcanic shore dives, seasonal hammerhead encounters and island trails near Tokyo.

Auf der Karte ansehen

Recherchequellen

Quellen für den Guide zu Izu Oshima

Referenzlinks, die zum Erstellen und Aktualisieren dieses Guides verwendet werden.

29 Quellen • Aktualisiert 3. Nov. 2026

Verfasst von DiveJourney. Erstellt aus öffentlichen Quellen und dem Wissen lokaler Anbieter. Zuletzt aktualisiert 3. Nov. 2026.

Oshima Diving Liaison Council: live rules and operator coordination - Membership, local rules, self-guided restrictions, site-rule entry point; check on travel day.
Oshima Diving Liaison Council: local diving rules PDF - Actual equipment, stewardship, surface restrictions; baseline PDF contains updates, so confirm later site notices.
Oshima Diving Liaison Council: four diving seasons - Local water temperature and visibility seasonal guidance; older qualitative estimate, not a forecast.
Oshima Diving Council: Keikai early morning participation rules - Minimum 30 logged dives, arrival-day exclusion, medical certificate contingencies, declaration.
Japan National Tourism Organization: Tokyo scuba diving - Official tourism overview of Akinohama and volcanic shore access; its shore-only claim is not current for all operators.
SeaSound Izu Oshima dive site descriptions - Local operator listing of Akinohama, Nodahama, Keikai, O-no-hama, Toshiki, Yaiso and Kagene boat sites.
Uminowa Izu Oshima diving site descriptions - Local operator site and site selection; no route or access guaranteed.
Uminowa guided diving, boat options and rates (updated September 2026) - 2026 operator offer, guide fees, rental exclusions, and northern pickup limits.
Orange Fish: skin-diving program (June 2026) - Explicit beginner skin-diving supply, seasonal window, depth limit, prerequisites, pricing and transfer limits.
Uminowa instructor-led snorkeling (updated September 2026) - Explicit operator-guided snorkel service and itemized fees.
Oshima Tourism Association: things to do - Mount Mihara, Ura Sabaku, stratified cliffs, Palm Line, geothermal baths, town attractions.
Oshima Tourism Association: island transport - Rental car, island bus, taxi and cycle options; logistics vary by port and day.
Oshima Town: Toshiki campsite (updated April 2026) - Free campsite, mandatory prior reservation, transit and nearby Toshiki swimming area.
Tokai Kisen: official vessel timetables - Current and changeable high-speed jetfoil and passenger vessel route schedules.
Tokyo Island Access: Oshima transport operation status - Official day-of-service routes, island port assignment, cancellations and flight status.
New Central Airservice: Chofu to Oshima flight schedule - Currently listed local air connection, fares, and operator schedule, subject to change.
Go Tokyo: transport to Tokyo islands - Tokyo metropolitan tourism cross-check on Takeshiba ferry services and transfer time.
Japan Meteorological Agency: Oshima monthly climate normals - Observed long-term monthly rain and air temperature means; October has high rainfall.
Japan Meteorological Agency: Izu Oshima volcano warning level - Level 1 volcano forecast and prohibition on entering hazardous crater interior.
Japan Ministry of Health: Oshima Medical Center listing - Motomachi medical facility, verified daytime contact and scheduled outpatient hours.
DAN Japan: emergency medical services - Emergency response priorities, member-only dive incident hotline and recompression referral.
Japan Coast Guard: maritime emergency 118 - Official coastal maritime distress telephone number.
Japan Ministry of Foreign Affairs: visa-exempt short-term entry - Nationality-specific visa exemption; general Japan immigration rules apply.
JNTO: Japanese electrical outlet and mains - 100V power, 50 Hz in eastern Japan, commonly type A sockets.
Go Tokyo: Izu Oshima Camellia Festival - Seasonal late-winter camellia festival and variable annual dates.
Oshima Tourism Association: Gojinka Onsen - Motomachi area public hot-spring facilities and current guidance.
Divers Alert Network: flying after scuba diving - Conservative no-fly guidance and risk distinctions; not a guarantee.
Destination hero photo by Guilhem Vellut (historical) - Yuno-hama beach @ Motomachi @ Oshima (9609621147). CC BY 2.0 (https://creativecommons.org/licenses/by/2.0/). Cropped and resized for the cover.
Destination hero photo by wanderplans.com - Representative photo. Rocky marine coastline, photographed on the Izu Peninsula, Shizuoka, Japan. Unsplash License (https://unsplash.com/license). Photographer: https://unsplash.com/@wanderplans. Cropped and resized for the cover.