Sources · Destination Guide

Kashiwajima and Southwest Kochi

Japan's rare-macro reefs, protected coral bays and wild Shikoku headlands in one two-base road trip.

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Destination Guide Sources For Kashiwajima and Southwest Kochi

Reference links used to build and maintain this guide.

56 sources • Updated Nov 3, 2026

Written by DiveJourney. Built from public sources and local operator knowledge. Last updated Nov 3, 2026.

JNTO Kochi Diving Guide - Primary national tourism account of Kashiwajima biodiversity, Ushironohama, Tatsukushi seasonal fish and nudibranchs, Ashizuri diving and road/train access.
Japan National Parks: Ashizuri-Uwakai - Defines the broad national park, local marine park zones and land-based snorkeling, diving and sightseeing context; guide only uses specified southwest Kochi portion.
AQUAS Kashiwajima current dive service - Kashiwajima shop offer for intro and certified dives, near-port day-boat format, Mar-Nov indicative fun-dive season, 2026 dive logs.
AQUAS booking and flight restrictions - Direct booking procedure, certification/experience checks, and shop 18-hour minimum after diving before flight.
AQUAS introductory dive - Published introductory scuba availability Apr-Nov and shop-specific age, timing, gear and briefing restrictions.
Paradi Kashiwajima guided diving and season - Local operator evidence for boat routine, mixed beginner/advanced conditions, spring water changes, summer storm risk and October-November biodiversity.
Otsuki Town Kashiwajima visitor rules - Municipal visitor notice covering parking, swim-zone buoys, boat traffic, bridge jumping prohibition, waste take-home and temporary road restrictions.
Kochi Prefecture Tourism Kashiwajima Beach - Locates the permitted beach by Kashiwajima bridge and posts swim-buoy, boat-route, parking and summer seasonal charge notices.
Kochi Prefecture Tourism Kashiwajima Shirahama - Beach snorkel opportunity and specific rocky sea-urchin warning, with Kashiwajima visitor parking arrangement.
Otsuki Tourism Association marine activities - Local directory distinguishing Otsuki and Kashiwajima dive services and separately operated marine outings. Directory listings do not establish live availability.
Otsuki Tourism Association accommodations (2026) - 2026 named Kashiwajima accommodation inventory, including general inns and diver-oriented facilities.
Otsuki Tourism Association camping (2026) - 2026 Ryugahama campsite season Apr-Nov, Otsuki campsite alternatives, and variable site charges.
Otsuki Tourism Association Odo-yama viewpoint - Road-access land viewpoint over Kashiwajima, Odo cliffs and Uwakai, with trail around the cliffs.
7me Kashiwajima guided skin diving - Published guided breath-hold skin-diving itinerary and C-card or concurrent PADI Advanced Snorkeler condition; JPY 150 per day operator-listed conservation contribution. Availability must be reconfirmed.
Tatsukushi Diving Center current 2026 reports - Active provider evidenced by October 2026 snorkeling and training logs and current course offer at Tatsukushi, separate from Kashiwajima boat departures.
Tatsukushi Diving Center local season guide - Local operator seasonal fish concentration Sep-Nov, nudibranch focus Jan-Jun, site-specific conditions and year-round certified diving subject to conditions.
Tatsukushi Diving Center activity prices and rules - Operator-provided beach/boat snorkel and introductory scuba details, health screening, cancellation policy and prices.
Tatsukushi Diving Center English activity descriptions - English service descriptions, gear-inclusive snorkeling and introductory diving, license courses and booking conditions.
Tatsukushi Diving Center premises - Direct site places the operator and its boat at Tatsukushi fishing harbor near the municipal parking area, not Kashiwajima.
Tosashimizu Geopark Tatsukushi scuba/snorkel - Local geopark visitor source confirms Apr-Nov experience tours, booking cutoff, local starting point and weather dependence.
Tosashimizu Tourism Tatsukushi Marine Park zones (2026) - 2026 update specifying marine park zones 1-4, zone 1 snorkeling/kayaking, zones 2-4 glass-boat viewing and protected Minokoshi coral.
National Parks Japan Tatsukushi kayak and snorkel - Official published guided kayak/snorkel tour, May-Oct 10 seasonal window and named operator Marine Club Joy; reconfirm current schedule and price.
Tatsukushi Kanko Kisen 2026 glass boat fares and routes - Direct operator fare JPY 2,000 adult, JPY 1,000 child, round-trip Tatsukushi to Minokoshi sightseeing route and weather cancellations; no cross-region service.
Tatsukushi Kanko Kisen operating status (2026) - Date-stamped direct service-status page for checking daily operation; check on travel day.
Tosashimizu Tourism Tatsukushi sandstone coast - Coastal rock-walk access and distinctive sandstone landforms; Minokoshi is a separate boat-access walk.
Tosashimizu Tourism Minokoshi Coast (2026) - 2026 source for Minokoshi rock walk, boat access and designated large coral colony, with separate duration on shore.
Ashizuri Aquarium SATOUMI visitor information - Operator entry JPY 1,200 adult, JPY 600 school-age and hours for current indoor alternative in Tatsukushi.
Ashizuri Undersea Observatory operator closure notice - Operator homepage explicitly states that the observatory ceased operations on 2026-09-30; obsolete attraction and combined ticket pages are not valid.
Kochi Prefecture Tourism observatory termination notice - 2026 government-backed tourism notice confirming permanent end of observatory operations on 2026-09-30, despite stale opening text.
Kochi Tourism Cape Ashizuri (2026) - 2026 scenic coastal walk, lighthouse and public-transport stop information for Ashizuri Cape.
National Parks Tatsukushi Uminowa visitor center - Free visitor center, rest facilities and marine activity information; open hours and specific closure days.
Tosashimizu Tourism Sakurahama beach - Designated Tatsukushi swimming beach, seasonal summer opening and stated green-turtle nesting in summer. Do not promise sightings.
Kochi Seinan Kotsu local bus timetable (2026) - Official bus timetable portal with Oct 1 2026 revision for Otsuki/Kashiwajima local services and Oct 2025 trunk revisions.
Tosa Kuroshio Railway train and bus transfers - Direct railway guidance linking Nakamura and Sukumo rail terminals to infrequent southwest regional buses.
National Parks Ashizuri-Uwakai access - JNTO source for Nakamura rail hub and infrequent bus to Cape Ashizuri; rental car strongly advisable for dispersed stops.
Visit Kochi Japan transport - Regional tourism source for Kochi Ryoma Airport access and current examples of air/rail connections.
Tosaden Kochi airport bus - Operator current airport-bus ticket payment and fare; warns Suica/ICOCA not accepted for that service.
Japan Meteorological Agency Shikoku climate - Meteorological agency regional climatology: early Jun-mid Jul rainy season, summer humidity and autumn tropical cyclone exposure; not a marine forecast.
Japan Meteorological Agency typhoon climatology - National typhoon activity peak July-Oct; actual trips require current forecast and local cancellation checks.
Japan Meteorological Agency typhoon monthly normals - JMA regional/national normals corroborate late-summer-autumn storm exposure without predicting individual days.
Divers Alert Network flying after diving - DAN minimum surface intervals and warning that intervals do not eliminate DCS risk.
DAN Japan dive emergency guidance - DAN Japan instructs calling emergency responders first for diving incidents and provides member-specific medical referral assistance.
Kochi Prefecture Hata Kenmin Hospital emergency department - Source for emergency department in Sukumo, 24/7 emergency intake and listed telephone; not evidence of a local recompression chamber.
Japanese Society of Hyperbaric and Undersea Medicine facility list - July 2026 member facility list includes Kochi Red Cross hospital, but does not establish emergency acceptance, decompression-illness treatment availability or transport time.
Japan Coast Guard 118 sea emergency number - Official emergency number for maritime accidents and rescue.
JNTO visitor emergency hotline and numbers - Official Japan ambulance 119, police 110 and multilingual visitor hotline 050-3816-2787.
Japan Ministry of Foreign Affairs visa exemptions - Official nationality-specific short-stay visa exemption list; no blanket visa assumption.
Embassy of Japan US visa FAQ 2026 - Updated 2026 US embassy FAQ for visa-free eligible nationals and 90-day examples; passport-specific rules apply.
Japan Environment Ministry marine park permits - Park law permit categories cover designated marine animals/plants, seabed changes and certain motorized boat activities; no automatic permission to extract wildlife.
JNTO Japanese yen and ATM information - Visitor cash, international ATMs and bank hours, important for remote fishing villages.
JNTO tipping in Japan - No routine expectation of tipping in Japan.
JNTO power outlets and electricity - Japan 100V, western Japan 60 Hz; standard two-flat-pin outlets.
JNTO connectivity and rural lodging - Remote lodging may lack Wi-Fi; advise prearranged connectivity and check local signal.
Kochi Tourism ASHIZURI THERMAE day use - Published Cape Ashizuri hot-spring day-use option and opening restrictions; reconfirm.
Kochi Tourism Manjiro footbath - Published free viewing footbath and Wednesday closure near Cape Ashizuri.
Destination hero photo by Kento Hirasue - Unsplash License. Photographer profile: https://unsplash.com/@_kennpyfilm | Location: Kashiwajima, Otsuki, Kochi, Japan