Fall Equinox at Caracol in Delta's Sky Magazine | Cayo Scoop! The Ecology of Cayo Culture | Scoop.it
From www.sfgate.com - January 27, 2012 1:30 PM

Caracol, for all 4 equinoxes, will allow overnight camping.  Here's the wiki page for Caracol: http://en.wikipedia.org/wiki/Caracol