Heichao diveResort

Heichao dive is a PADI 5 Star Dive Resort in Onna-son, on Okinawa, with a focus on the island's blue cave. The team teaches and guides in Japanese, Mandarin and Chinese, and the source describes a full-time Chinese-language service with Taiwanese registration for training.

The source text is garbled in places, but the thread is clear: come to Okinawa for the blue cave, and the staff will take care of the diving and the explaining.