Ishigaki and Iriomote

Ishigaki diving runs through the year, but the Kabira manta stations are generally approached from about May to mid-October when sea state allows. The Ishigaki tourism guide highlights September and early October for historically favorable sightings; the official Okinawa guide also points to July through mid-October. Those months overlap tropical storm risk, so choose several days and leave space for site changes. If a northerly swell blocks Manta Scramble, shops may dive Osaki or other sheltered coral sites instead. A booking is for a guided dive, not a guarantee of seeing a manta.

No. Kabira Bay beach itself is a no-swimming area, and the offshore manta points are not safe independent shore swims. Visit Ishigaki warns about boat traffic, distance and current, and recommends joining a local boat tour for manta viewing. Named Ishigaki operators publish seasonal manta outings, but they select the exact site for swell, wind and wildlife behavior. A glass-bottom boat in Kabira Bay is a good dry alternative, but it is not equivalent to entering the offshore manta habitat. Never chase rays, enter a closed area or leave an approved tour group.

Fly to Ishigaki Airport, travel by road to the city remote-islands ferry terminal, then board a passenger ferry to Iriomote. Anei Kanko lists direct Ishigaki-Uehara sailings of roughly 45-55 minutes and Ishigaki-Ohara sailings of about 40-50 minutes, with some indirect services taking longer. Uehara is the northern/western side used by several marine operators; Ohara is the southeast gateway. Winter north winds can cancel Uehara more often. Replacement buses exist on selected disruption services, but 2026 changes ended the ordinary Uehara-running connection, so check the exact ticket and boarding status.

Yes for selected marine activities, but not through every shop. Iriomote National Park describes locally guided two- and three-dive boats, with operators selecting sites for experience and sea conditions. However, Diving Team Unarizaki currently states that it does not offer introductory scuba diving or snorkeling, so its certified fun dives should not be marketed as those products. Ishigaki-based Viking Scuba Kabira does advertise beginner introduction dives, while separate Iriomote snorkeling businesses advertise Barasu-area boat outings. Tell the provider your certification, recent diving, swimming ability and exact port. Do not presume a beginner can join Ogan drift diving.

Ishigaki has directly published freediving instruction. Blue Space Ishigaki lists PADI Skin Diver, Basic Freediver and Freediver programs with safety, rescue and open-water components. Kahoo Ishigaki lists AIDA introduction and qualification courses, plus training services, subject to local weather and participation requirements. Their class locations change with sea state, so an advertised course does not establish a permanently accessible depth line. No dedicated Iriomote instructor offering could be verified for this packet, and Iriomote dive or snorkel boats should not be presumed to provide apnea safety. Never practice deep breath-holds without a trained buddy and qualified supervision.

Yes. Taketomi Town treats Hinai River and Pinaisara Falls as a restricted ecotourism field, with advance entry approval and an accompanying registered guide. The local system lists a 200-person daily cap for this area and a JPY 500 per person administrative charge on the guided application route. The same rule pattern covers Nishida River/Sangara, while other restricted mountain and upper-river fields have different guide-or-training alternatives. Do not rely on an older guidebook that suggests independent access. Reserve a locally authorized trip and ask who files the approval, what is included and how weather cancellation affects it.

No. The small coral bank off northern Iriomote changes with tides, swell and its physical shape. Local operator Umineko explicitly warned in March 2026 that landing had become almost impossible, while continuing to list Barasu-area snorkeling trips and combined Hatoma boat options. A tour around Barasu Reef is a genuine marine offering, but a walk on exposed coral debris should never be promised. Ask about the actual departure point, tide-dependent route, flotation gear and whether a different reef will be used. Do not collect or step on live coral.

Yonehara is famous for fish and coral close to shore, but it is not a substitute for an automatically safe supervised swimming zone. Visit Ishigaki warns about currents, shallow coral, and habu jellyfish. Okinawa government tourism guidance calls for designated swimming areas or organized tours, proper flotation and a buddy; it identifies box jellyfish as a particular May-October hazard. Never cross the reef edge unaided or swim toward an offshore manta point. Check tide and swell on the day, leave enough buoyancy to avoid touching coral, and cancel your swim when there is no safe exit.

Not as a normal beginner add-on. Diving Team Unarizaki offers selected Ogan expeditions when sea, staffing and group conditions permit, but describes strong currents and strict participant requirements. Its published criteria include at least 100 logged dives, competent buoyancy and ascents, ability to handle the boat, and operator assessment after a local orientation day. May to parts of September are identified as more promising windows, not scheduled guarantees. Ogan is also a protected seabird island where landing is prohibited. Confirm qualification, extra charges and cancellation policy with the Iriomote operator, not a generic Yaeyama day tour.

On Ishigaki, pair a Kabira Bay lookout and glass-bottom boat with Tamatorizaki, a Shiraho coral-education stop, island crafts or a clear-night stargazing outing. On Iriomote, visitor options include Nakama or Urauchi river cruises, the wildlife conservation center, Yubu Island botanical gardens and approved guided Pinaisara kayaking. Several river or waterfall visits are whole-day activities, and protected field access requires pre-arranged permission. Keep non-divers on their own suitable tour schedule rather than implying they can stay on a scuba-only boat. In cooler months, forest and cultural plans may be more comfortable than open-water activities.

Stop the activity and call Japan emergency services immediately: 119 for ambulance or 118 for maritime distress. Inform the local guide or skipper and supply exact position and dive profile if relevant. Yaeyama Prefectural Hospital on Ishigaki advertises 24-hour emergency care, but weather-dependent transport separates it from Iriomote. This packet could not verify a local recompression facility or guaranteed transfer time, so do not postpone evaluation based on assumptions. After contacting local emergency services, DAN Japan or the international DAN hotline can assist with diving medical coordination. Carry insurance contact details offline.

No reliable current official source for a blanket Iriomote-Ishigaki scuba tag or universal visitor levy was established during this research, so this guide does not invent an amount. Individual dive businesses set their prices, ferries have separate passenger fares and some protected Iriomote inland fields carry an advance approval fee. For example, the town ecotourism procedure lists JPY 500 per person on a registered-guide application path to Pinaisara Falls. Verify any operator-collected environmental charge with its actual description and legal basis before payment. Never confuse a ferry ticket, park field permission, and a marine guide price.