The primary draw of this site is for those with overhead training. The network of tunnels is extensive, but not appropriate for divers without cave and decompression training. The open water section offers a cold water deep training site when the ocean is blown out, but doesn't have much draw after you've seen it a few times. For those with interest in the overhead, visit http://esperanzamap.org. It has history, photos, videos, and the most up to date maps in existence.