Marine Club Berry Naha (berry7.com) operates whale-watching and Kerama Islands cruises, as does Cerulean Blue (cerulean-blue.co.jp/en), which also has a wider repertoire of tours and cruises; the trade-off is less frequent and/or less reliable departures. For ease of booking in English, real-time availability and on-the-spot discounts, the Klook app (klook.com) is gaining popularity as an Okinawan distributor.

