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Izu Peninsula

Volcanic shore dives, seasonal offshore encounters and hot-spring towns, planned one coast at a time.

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Quellen für den Guide zu Izu Peninsula

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76 Quellen • Aktualisiert 3. Nov. 2026

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

JNTO: Shizuoka diving guide - Reviewed 2026-11-03. Supports overview geography, regional dive character and local-only trip format; site managers supersede tourism summaries on access.
Izu Oceanic Park: operating information - Reviewed 2026-11-03. Supports scuba shore operation and seasonal exit hours. Live November 3 report confirms activity only on that date.
Izu Oceanic Park: guided diving - Reviewed 2026-11-03. Supports guided shore supply, station pickup, beginner-to-experienced acceptance and fee example; expired promotional text excluded.
Futo Diving Service: reservation and access rules - Reviewed 2026-11-03. Supports 2026 end of general snorkeling admission, separate-guide requirement, certification and equipment restrictions.
Futo Diving Service: shore sites - Reviewed 2026-11-03. Supports Yokobama, Waki-no-Hama, conditional Futo Hole access and prohibited boat channels.
Futo Diving Service: boat-site seasons - Reviewed 2026-11-03. Supports shop-accompanied boats and point-specific dates; not one peninsula-wide boating season.
Sunrise Ose: dive-site guide - Reviewed 2026-11-03. Supports distinct inner-bay, outer-coast and cape profiles, training use, rocky entry hazards and depth-dependent difficulty.
COCOMO Osezaki: 2026-27 diving calendar - Reviewed 2026-11-03. Supports controlled hours and marked cape/night dates for April 1, 2026 to March 31, 2027.
COCOMO Osezaki: programs and access terms - Reviewed 2026-11-03. Supports guided fee plus dive ticket, medical screening and this operator's conditional self-dive acceptance.
Koganezaki Dive Center: site profiles - Reviewed 2026-11-03. Supports beach depth, beginner training, macro, early-summer squid and separate deeper/current-affected Arari boat reefs.
Koganezaki Dive Center: fees - Reviewed 2026-11-03. Supports guided shore/boat prices, inclusions, rentals and differing meeting locations; reviewed price examples only.
Hamayu: Kumomi dive sites - Reviewed 2026-11-03. Supports short local boat trips, open-water routes, overhead passages and advanced offshore sites; no safety guarantee adopted.
Mikomoto Hammers: diving FAQ - Reviewed 2026-11-03. Supports guided drift operation and June-October hammerhead window; eligibility wording checked against dated 2027 notice.
Mikomoto Hammers: October 29, 2026 notice for 2027 - Reviewed 2026-11-03. Supports explicitly future-dated 2027 prerequisites and earlier morning meeting; not universal 2026 rules.
Mikomoto Hammers: published 2027 prices - Reviewed 2026-11-03. Live page labels tariffs January 2027; older search snippets show 2026. Future budget example only; conflicting peak cutoff omitted.
Diving Service Atami: wreck guide - Reviewed 2026-11-03. Supports Asahi No.16 exterior wreck, deep profile and stricter operator acceptance; no penetration permission established.
Diving Service Atami: dive sites - Reviewed 2026-11-03. Supports separate reef and Kosoga cave routes. Current operator says November-April; older tourism sources differ.
Diving Service Atami: November 1, 2026 report - Reviewed 2026-11-03. Supports one-day swell cancellation of Kosoga despite seasonal opening, with other sites used. Not a continuing closure.
Diving Service Atami: activity seasons - Reviewed 2026-11-03. Supports this provider's early-July to early-September snorkeling and May-November introductory scuba; dates are supplier-specific.
EastDive: PADI freediving course - Reviewed 2026-11-03. Supports year-round arranged pool/ocean course and English-capable instructor. Advertised Futo venue requires access reconfirmation.
Inatori Marine Sports Center: PADI Freediver - Reviewed 2026-11-03. Supports dedicated pool-plus-ocean training and 10 m course target; exact ocean venue and seasonal schedule remain unverified.
Inatori Marine Sports Center: access - Reviewed 2026-11-03. Supports Inatori location and advance-arranged station collection; course language and dates require confirmation.
JMA: Irozaki 1991-2020 climate normals - Reviewed 2026-11-03. Supports south-coast rainfall seasonality only; not a sea-state forecast or peninsula-wide water-temperature series.
JMA: Tokai rainy-season history - Reviewed 2026-11-03. Supports typical early-June to mid-July rainy period, with variable annual timing; no automatic marine closure.
JMA: typhoon timing and tracks - Reviewed 2026-11-03. Supports stronger July-October storm-disruption caution; national climatology does not predict a particular Izu departure.
SUNLAIZU: seasonal diving guide - Reviewed 2026-11-03. July 2026 operator assessment supports autumn scuba, winter thermal protection and spring variability; no numeric weather snapshot imported.
Hirizo ferry: 2026 season announcement - Reviewed 2026-11-03. Supports July 1-September 30, 2026 beach-ferry schedule; does not establish 2027 dates.
Hirizo ferry: 2026 season-end notice - Reviewed 2026-11-03. Text confirms September 30 cancellation/end and separate October weekend boat snorkeling. URL metadata date differs from event date.
Hirizo: freediving restrictions - Reviewed 2026-11-03. Older notice still linked live: discourages repetitive deep training and requires advance instructor/tour-leader notification for deeper activity.
Hirizo ferry captain: beach and sea guide - Reviewed 2026-11-03. Supports buoyed swimming limits, boat-channel exclusion, current and wind sensitivity; local guidance only.
Koganezaki Dive Center: guided snorkeling - Reviewed 2026-11-03. Supports July 1-August 31 guided program, age six minimum, flotation and staged shallow practice.
Koganezaki Park Marine Sports Center: snorkeling - Reviewed 2026-11-03. Separate supplier supports instruction, equipment and facility package; no explicit season-end date verified.
JR East: Odoriko routes - Reviewed 2026-11-03. Supports reserved-seat Tokyo-area trains, east-coast and Shuzenji branches, and luggage facilities; services vary by departure.
National Parks of Japan: peninsula access - Reviewed 2026-11-03. Supports Atami/Mishima gateways, east-coast railway, Shuzenji connection, buses and road travel; island content excluded.
Haneda Airport: train and monorail - Reviewed 2026-11-03. Supports airport rail options; full airport-to-Izu duration depends on destination and connections.
Narita Airport: rail access - Reviewed 2026-11-03. Supports JR/Keisei/Sky Access services and terminal-station distinctions; no universal Izu transfer time.
Nishiizu Tourism: Shuzenji-Dogashima buses - Reviewed 2026-11-03. Live page shows October 1, 2026 revision. Supports Toi-Dogashima-Matsuzaki road corridor and service-specific routings.
Nishiizu Tourism: Dogashima-Shimoda buses - Reviewed 2026-11-03. Supports southern/western bus connection; current departure and last-bus details must be checked.
Suruga Bay Ferry: timetable and fares - Reviewed 2026-11-03. November 3, 2026 timetable supports 90-minute Shimizu-Toi crossing and ordinary passenger fare; no dive/liveaboard product.
JNTO: Shimoda - Reviewed 2026-11-03. Supports southern rail base, Perry Road, park, viewpoints and Shimogamo Onsen; therapeutic/captive-animal marketing omitted.
JNTO: Jogasaki Coast - Reviewed 2026-11-03. Supports lava coastline, walking routes and Kadowaki bridge; land access does not authorize water entry.
JNTO: Shuzenji Onsen - Reviewed 2026-11-03. Supports central-Izu onsen/temple district and station approach; individual bath policies and hours vary.
Shimoda Tourist Association: Ryugu Sea Cave - Reviewed 2026-11-03. Supports land-based sea-cave sightseeing and bus approach; no underwater cave access or dive permission.
Numazu City: tourist guide - Reviewed 2026-11-03. Supports northwest gateway and distinct city, port, Osezaki and western-bay districts.
Shimoda City: Perry Road - Reviewed 2026-11-03. Supports historic town walk, traditional buildings and access from Izukyu-Shimoda.
MOFA: short-stay visa exemptions - Reviewed 2026-11-03. Supports nationality/passport-specific entry guidance; not a universal 90-day entitlement.
Digital Agency: Visit Japan Web - Reviewed 2026-11-03. Supports official immigration/customs preparation service, distinct from visa eligibility.
National Tax Agency: departure tourist tax - Reviewed 2026-11-03. Supports current JPY3,000 departure charge and eligible pre-July 2026 ticket transitional rate.
Ito City: bathing-tax revision - Reviewed 2026-11-03. Supports JPY300 overnight/JPY150 day-use from October 1, 2025, subject to exemptions.
Numazu City: bathing tax - Reviewed 2026-11-03. Supports JPY150 person/day with municipal exemptions; February 2026 update.
Shimoda City: current and April 2027 bathing tax - Reviewed 2026-11-03. Supports current JPY100/130/150 tiers and future JPY300 overnight/JPY150 day-use revision; transition rules apply.
JNTO: Japan Visitor Hotline - Reviewed 2026-11-03. Supports 119/110 emergency dispatch numbers and multilingual 24-hour visitor assistance.
Japan Coast Guard: maritime emergency 118 - Reviewed 2026-11-03. Supports domestic maritime emergency number 118.
Juntendo Shizuoka Hospital: emergency reception - Reviewed 2026-11-03. Supports 24-hour emergency reception and telephone; does not establish guaranteed diving recompression acceptance.
Juntendo Shizuoka Hospital: clinical engineering - Reviewed 2026-11-03. Lists hyperbaric oxygen treatment; on-demand recreational DCI treatment, staffing and chamber availability remain unverified.
Shizuoka Prefecture: marine recreation and fishing rules - Reviewed 2026-11-03. June 2026 guidance supports collection restrictions, fisheries rights and avoidance of fishing infrastructure; not a general diving ban.
JNTO: practical travel FAQ - Reviewed 2026-11-03. Supports language, holidays and basic visitor planning; national context only.
Kansai Electric: voltage and frequency geography - Reviewed 2026-11-03. Supports 100V and east-of-Fuji-River 50Hz geography; Izu application is geographic inference.
JNTO: plugs and electricity - Reviewed 2026-11-03. Supports voltage compatibility and adapters; combine with national FAQ for Type A plugs.
JNTO: Japanese currency - Reviewed 2026-11-03. Supports yen cash planning and variable ATM access; stale illustrative USD comparison not used.
Seven Bank: overseas cards - Reviewed 2026-11-03. Supports overseas-card ATM availability, brand restrictions and variable fees; not guaranteed acceptance of every card.
JNTO: tipping customs - Reviewed 2026-11-03. Supports no customary tip expectation and discreet optional gratitude to private guides.
JNTO: Wi-Fi and connectivity - Reviewed 2026-11-03. Supports travel SIM/router options; offshore and individual coastal signal coverage unverified.
DAN: flying after diving - Reviewed 2026-11-03. Supports minimum no-fly intervals and altitude caution for asymptomatic divers; no guarantee of avoiding DCS.
DAN: hot tubs after diving - Reviewed 2026-11-03. Supports delaying immediate hot immersion after scuba and avoiding rapid rewarming; no universal fixed safe interval.
DAN World: freediving safety awareness - Reviewed 2026-11-03. Supports trained dedicated buddy, no hyperventilation and formal instruction for breath-hold activity.
PADI: scuba and freediving safe practices - Reviewed 2026-11-03. Supports training limits, overhead qualification and avoiding open-water freediving after scuba on the same day.
DAN: emergency assistance - Reviewed 2026-11-03. Supports emergency hotline and local emergency-services-first response.
DAN World: decompression illness - Reviewed 2026-11-03. Supports urgent evaluation, oxygen first aid and medical advice even after apparent symptom improvement.
Mikomoto Hammers: season guidance - Reviewed 2026-11-03. Supports June-October preference and winter wind-related sailing disruption; sightings are variable.
Koganezaki Dive Center: beach facilities and arrival - Reviewed 2026-11-03. Supports managed shore facilities, parking-to-site transfer and operator-noted mobile signal limitations; safety marketing omitted.
JMA: tsunami warnings and evacuation - Reviewed 2026-11-03. Supports coastal evacuation after strong/prolonged shaking or warnings, advisory water exit and waiting for official clearance.
National Police Agency: foreign driver documents, April 2026 - Reviewed 2026-11-03. Supports accepted Japanese license, 1949 Geneva IDP or designated foreign license plus authorized translation, with validity restrictions.
Japan Automobile Federation: foreign licenses and IDPs - Reviewed 2026-11-03. Supports distinction between 1949 Geneva IDPs and invalid other-convention formats, including 1968 Vienna permits.
Hirizo captain: conditional November7-8,2026 boat-snorkeling sessions - Reviewed2026-11-04 via current primary rendered page. Oct29 notice schedules two conditional autumn boat sessions, not reopening summer ferry or confirming departure. Mandatory wetsuit, no summer buoys, experience/consultation and morning decision matter.
Destination hero photo by wanderplans.com - Unsplash License. Photographer profile: https://unsplash.com/@wanderplans | Location: Izu, Shizuoka, Japan