Underwater Archaeological Sites

The National Geographic YouTube channel has a recent video highlighting the work being done at Texas State University through The Meadows Center for Water and the Environment regarding Spring Lake, formed by a dam which has collected he outpouring of natural springs and preserved underwater many archaeological sites.  It makes for a fine idea for a tabletop roleplaying setting location in that one can conceive of any number of underwater adventures in submerged ruins and the like.  Enjoy!