Would you like cave diving as much if the caves were well lit?

[DA Aquamaster]

The tubes could have some other benefits as well. Cave trash could not be strewn about willy nilly, no more initials carved in the actual cave surface (the acrylic maybe),and the lighted EXIT signs would eliminate the need for laying lines.

We could provide grease pencils and then the janitor could just wipe off the graffiti once a week.