Caves in the Chicxulub Crater Region?
Do these cenotes have going caves?
http://en.wikipedia.org/wiki/Chicxulub_crater
"A team of California researchers including Kevin Pope, Adriana Ocampo, and Charles Duller, surveying regional satellite images in 1996, found a sinkhole (cenote) ring centered on Chicxulub that matched the one Penfield saw earlier; the sinkholes were thought to be caused by subsidence of the impact crater wall.[18] More recent evidence suggests the actual crater is 300 km (190 mi) wide, and the 180 km ring an inner wall of it."
http://upload.wikimedia.org/wikipedi...-anomaly-m.png
The shaded area is the northern shore of the Yucatan Peninsula, the white dots are cenotes, and the coloration is the gravitational field.