D2P SLATE:  Designed to help divers record significant features of the heritage site they are diving.  The information can be used to accurately fill out their log book or the information contained on the slate following a dive can be submitted to help add to the archival information available on the site.

D2P INTERPRETIVE TRAIL SLATE:  Designed to provide divers with a guide to the historic site they are visiting providing them with a greater understanding and appreciation of the site.