Blue Cave Snorkeling

Hi!

I am going to Okinawa in November and wanted to do Blue Cave Snorkeling. I don't know if it is best to book online before I go (and where to do that) or if it is possible to book once I get to Okinawa (and where I would go to book). Has anyone ever been before? What was your experience and what did you do?

Thanks!

by Nearby_Internal_6268