He found the snorkel gear in the back, a rather slim selection, but it was December.

A 3 3/5frac12 4/5-hour trip including snorkel gear, instruction and beverages is $34.

You can rent snorkel gear for about $10 to $12 or arrange a day trip for adult/child $50/35.

Also included are a jungle tour, the use of snorkel gear and waterproof boots.

Rates start at $250, including the use of snorkel gear, kayaks and a full breakfast but not the 8 percent tax.

Room rates start at $210 plus 8 percent tax, including full American breakfast, use of snorkel gear and water floats.

A day pass costs £6, and you can hire snorkel gear for another £3.

Anything over about a meter is swimming for a tank-unless you've got special snorkel gear, which they don't.

We took our own inexpensive snorkel gear and I'm glad we did.

Free-diving with snorkel gear down to about 20 is an excellent way to see these sinkholes.