The Izu Oshima Atami ferry route connects Izu Islands with Japan. Currently there is just the 1 ferry company operating this ferry service, Tokai Kisen. The crossing operates up to 14 times each week with sailing durations from around 45 minutes.
Izu Oshima Atami 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.