How to get to Kamikoshikijima

High-speed boat Koshikijima. Calling order: Sendai Port → Sato Port → Nagahama Port. Sailing 1 from Sendai, 8:50 → Sato Port arr. 9:40 (dep. 9:45) → Nagahama Port arr. 10:25. Sailing 2 from Sendai, 14:30, goes direct to Nagahama Port (arr. 15:40) and does not call at Sato Port. Sailing 1 from Koshikijima, Nagahama Port dep. 10:30, goes direct to Sendai Port (arr. 11:40) and does not call at Sato Port. Sailing 2 from Koshikijima, Nagahama Port dep. 15:45 → Sato Port arr. 16:25 / dep. 16:30 → Sendai Port arr. 17:20. So Sato Port has 1 round trip a day: 8:50 from Sendai and 16:30 from Sato Port. High-speed boat (passengers only; cars cannot be carried). Timetable effective from Apr 26, 2026. Bookings open 2 months before sailing, by phone (Sendai office 0996-41-5100, open every day 9:00–16:30) or online. However, a notice dated Oct 22, 2026 says "online booking and the service information email" are suspended for system maintenance (resumption date undecided; to be announced on the website once decided). While suspended, high-speed boat bookings are taken by phone at Sendai Port (0996-41-5100). Fares (tax included): Sendai to any Koshiki port, adult ¥4,070, child ¥2,040 (express charge included); Sato–Nagahama adult ¥2,420. Koshikijima resident discounts are available. Round-trip tickets are sold only from Koshikijima (Island Departure Round-Trip Discount, adult ¥7,740, valid 14 days). The "Koshiki Shuyu Kippu" (to/from Sendai Port): adult ¥4,820, child ¥2,410 (no stopovers on Koshikijima). Large items such as fishing gear and carry carts are charged as hand baggage (Sendai to any Koshiki port, ¥380 each). Bicycles in a bike bag may be brought aboard; bicycles loaded onto the high-speed boat are limited in number (¥760 each). Extra sailings are planned during Golden Week and Obon. Between Sendai Station and Sendai Port Terminal, the "Sendai Port Shuttle Bus" runs to match the high-speed boat (Sendai Station 8:00 → Sendai Port 8:30, 13:45 → 14:10; to Sendai Station from Sendai Port at 11:50 and 17:30). Notice as of Nov 5, 2026: sailing 2 from Koshikijima on Nov 8 (Sun), sailing 1 from Sendai (8:50) on Nov 21 (Sat) and sailing 2 from Koshikijima on Nov 22 (Sun) are "almost full". Passengers with reservations have priority, and you may not be able to board without one. Sato Port agent: 09969-3-2019.

Ferry Yui Line Koshiki. Calling order: Kushikino Shinko Port → Sato Port → Nagahama Port. Sailing 1 from Kushikino, 11:15 → Sato Port arr. 12:30 (dep. 12:50) → Nagahama Port arr. 13:50. Sailing 2 from Kushikino, 16:30 → Sato Port arr. 17:45 (dep. 17:50) → Nagahama Port arr. 18:50. Sailing 1 from Koshikijima, Nagahama Port dep. 7:45 → Sato Port arr. 8:45 / dep. 9:05 → Kushikino Shinko Port arr. 10:20. Sailing 2 from Koshikijima, Nagahama Port dep. 14:20, goes direct to Kushikino Shinko Port (arr. 16:05) and does not call at Sato Port. Ferry Yui Line Koshiki (carries vehicles). Timetable effective from Apr 26, 2026. Reservations are required if boarding with a vehicle (including motorcycles) (by phone from 2 months before sailing, ferry reservations 0996-32-6458; Koshikijima Shosen weekdays 8:30–17:00 and Saturdays 8:30–12:30, Kyushu Kaiun Saturdays 12:30–15:30 and Sundays/holidays 8:30–15:30). Fares (tax included, 2nd class): Kushikino to any Koshiki port, adult ¥2,800, child ¥1,400; Sato–Nagahama adult ¥1,500. Reserved rooms cost the 2nd-class fare plus ¥1,050 (adult, Kushikino to any Koshiki port). Koshikijima resident discounts are available. Round-trip tickets are sold only from Koshikijima (Island Departure Round-Trip Discount, adult 2nd class ¥5,320, valid 14 days). Vehicle fares (including the 2nd-class fare for one driver), Kushikino to any Koshiki port: under 3 m ¥7,460, under 4 m ¥9,130, under 5 m ¥10,670. Vehicle check-in closes at 10:25 for sailing 1 and 15:50 for sailing 2 from Kushikino, and 30 minutes before departure at the Koshiki ports. Credit cards cannot be used on board. Service is normally suspended for about 2 weeks sometime in January–February for the periodic inspection (dry dock) (per the timetable page; the 2027 dates have not been announced). Connecting buses run to Kushikino Shinko Port (Sendai Station 9:55 → Kushikino Shinko 10:29, Kushikino Station 10:48 → 11:00, Kagoshima-Chuo Station 14:40 → 15:35, and others). Agent: Kyushu Kaiun (Kushikino Shinko Port) 0996-32-2161. A notice dated May 28, 2026 says new passenger boarding ramps were installed at Sato Port and Nagahama Port. Sato Port agent: 09969-3-2019.