I once went diving off the coast of Finland to check out a really old shipwreck. Mind you, this wasn't no cool ship wreck. And visibility was puke green at 20cm from your glasses. Dark and cold. All you got was your diving computer and coordinates. Took us about 30 mins to find the site and we stayed there for about 10. All it was was a few wooden beams partially submerged by the silty bottom. Dunno why, but it was really cool. So I guess I can understand why divers would go in search of a gnome garden. To be honest I even thought "heh, cool." Like a lost treasure or something. But I'm not that stupid to go by myself.