Groudle Glen is a shore-entry kelp forest and reef dive in the Irish Sea, close to Douglas on the Isle of Man. Depths run from eight to eighteen metres, making it accessible to beginner divers, and visibility typically reaches five to fifteen metres. The kelp forest is the defining feature, and harbour seal encounters are a known draw at this site. Species recorded include conger eel, catshark, dogfish, gurnard, lumpfish, and European spiny lobster.
Fin maps 1 sites in Groudle Glen and The Iron Pier (1 scuba diving sites).