Okinawa is an island within an archipelago (a group of islands in a stretch of sea). Its capital is Naha City, which is where we stayed. Okinawa is known as the “Japanese Caribbean”. The seawater is clear blue and warm. We dove two days, each day with a different dive center.
The first dive center we dove with was MIC 21. We bought dive trips to a site named Blue Cave, an underwater cave. MC 21 is also a store equipped with all of your diving, or under sea gear, desires. It is complete.
The second dive center we utilized was Sea Sir (http://www.seasir.com/en/). They were pleasant and professional. With them, we visited Kerama National Park, one and a half hours (far away) from the shore. The seawater was clear and warm both days that we dove. Between the two dive centers, we recommend Sea Sir.