The Kuroshima Ishigaki ferry route connects Okinawa with Okinawa. Currently there is just the 1 ferry company operating this ferry service, Yaeyama Kanko Ferry. The crossing operates up to 21 times each week with sailing durations from around 30 minutes.
Kuroshima Ishigaki sailing durations and frequency may vary from season to season so we’d advise doing a live check to get the most up to date information.