| Koniya to Kakeroma Ferry Kakeroma adult passenger fare | JPY 360 one way (municipal posted fare) Single crossing; recheck live fare before departure | Kakeroma public ferry passengers | Koniya municipal ferry terminal or local ferry window | The Setouchi Town fare table was last revised in 2022 and may be updated; children, returns, vehicle transport and resident discounts have separate tariffs. This is not a dive-boat charge. |
| Kohollo certified 2-boat-dive day | JPY 17,000 (operator published) Per listed 2-dive booking; subject to changes | Certified fun divers booking the southern circuit | Aqua Dive Kohollo directly | Operator publishes separate 1/2/3-boat and beach dive rates; rental scuba equipment may add JPY 6,000. Its booking descriptions usually center on 2-3-dive schedules. |
| RIKI Kakeroma 2-boat-dive day | JPY 16,000 (operator published) Per 2-boat-dive day; subject to changes | Certified divers on Kakeroma-based guided boats | Diving and Pension RIKI directly | RIKI also lists an outer-ocean surcharge and a separate lodging tariff. Passenger ferry transport to the island is a separate arrangement. |
| AMAMI Freediving AIDA1 tuition | JPY 32,000 (provider published course list) One-day course; confirm dates and currency quote | Eligible AIDA1 students | AMAMI Freediving directly | Provider also shows AIDA2 at JPY 68,000 and AIDA3 at JPY 79,000; course length and prerequisites vary. Another language page displays USD amounts, so request the current payable quote. |
| Kohollo winter humpback tour | JPY 26,000 swim-eligible; JPY 15,000 boat-only (operator published) Advertised January-March season, weather and rules permitting | Eligible winter whale-swim guests or boat-only observers | Aqua Dive Kohollo directly | Whale observation and water entry are not assured. Operator requires appropriate credentials and open-water snorkeling competence for in-water guests; no scuba or duck diving with whales. |
| Ohama Marine Exhibition Hall admission | JPY 800 adult; JPY 500 school-age child (tourism listing) Per entry; confirm opening days and rates | Non-divers and visitors to Ohama Seaside Park | Amami Marine Exhibition Hall | Separate from ordinary beach park access, with periodically scheduled maintenance closures. |
| Amami Park museum combined admission | JPY 630 adult (tourism listing) Per admission; verify current exhibit and schedule | Visitors to Amami Park and Tanaka Isson Museum | Amami Park ticket counter | Official Amami tourism listing has other rates for children and individual exhibit admissions. |