ellie was reading in her new mexico highlights about the blue hole ..
just so happens that we were going to drive right by it on the way to albuquerque ..
so in true griswald fashion we stopped to "look at it"
next thing i know i am fishing swim suits out of suitcases
the blue hole is a bell shaped sink hole that is 80 feet across on the surface
and 130 across at the bottom .. it is 81 feet deep and stays a constant 64 degrees .. it is feed by a natural spring with 3000 gallons of water a day .. scuba divers from all over come to dive the blue hole .. evidently it's walls are smooth all the way down .. there are also many underground caves that have claimed the lives of at least 2 divers .. they have since closed off the opening to the tunnel that leads to the caves with a grate ..