Sinkhole density is an important factor for determining the area most prone to sinkhole development. A culvert failure near Haiku caused the formation of a sinkhole about deep. Heavy rains led to some street flooding and a sinkhole that damaged one home. Two more collapses occurred later at 21&colon;45, when workers were pouring concrete into the sinkhole. "El Castillo" is located above a cavity filled with water, labeled a sinkhole or cenote. The areas most susceptible to sinkhole collapse can be identified and avoided. The Great Blue Hole is a giant marine sinkhole off the coast of Belize. The archipelago includes Dragon Hole, the deepest underwater sinkhole in the world. While scouting ahead in the fog, he falls into a muddy sinkhole and nearly drowns. Its deepest point is about inside of a steep sinkhole within the lake. The storm also associated with a very large sinkhole. Originally built in a shallow sinkhole, the playing surface is below ground level. It is a vast sinkhole in the northwest part of Landover. The forming sinkhole beneath the temple is around and up to deep. This substance was also used to fill in the 2007 Guatemala City sinkhole.