You must first fly to Ishigaki Island from major Japanese cities like Tokyo, Osaka, or Okinawa. From Ishigaki's port, take either a high-speed boat (60-70 minutes, ¥6,000-7,000 round trip) or regular ferry (2 hours, ¥3,000-4,000 round trip) operated by Anei Kanko or Yasuyama Kanko. Ferries typically depart once or twice daily, so check schedules in advance and book early during peak seasons.