In the middle of the desert is The Blue Hole.

This is an artesian well. It's a circular, natural formation, with clear-blue water. There is a constant inflow of water at 3,000 US gallons per minute, which changes the entire body of water every six-hours. The water temperature is a constant 62-degrees Fahrenheit (17-degrees Celsius.

The surface is only about 80-feet in diameter, but it expands to around 130-feet in diameter at the bottom. The depth is 80-feet.

The Blue Hole of Santa Rosa is one of the most popular diving sites on the Planet.