Click here for map. This is a natural hot springs cavern inside a large rock dome, accessed by tunnel. 10 am to 8 pm, and you must pay to enter.
Rental equipment is available on-site.
The crater is open year round. The dive area is about 60 feet wide, with a depth 65 feet. Visibility is around 40-50 feet. Photo looking up from water level to the opening in the rock dome straight above. The light hitting the water makes it a luminous blue.