Loch Long is a sea loch extending from the Firth of Clyde. It's a popular loch for diving as it was used as a testing ground for torpedoes during World War II. Near to where the picture was taken is Conger Alley, well known for the Conger Eels which can be regularly seen there. Also commonly spotted are Wrasse, Leopard Spotted Gobbies, Dogfish, Peacock Worms, Anemones, Sea Squirts and numerous types of crabs.
Loch Long is both the longest (41 miles) and the deepest (180 miles) of the Scottish sea lochs.
Mud slope going down.
"Reef" about 15m wide running down to about 25m. Reef consists of lots of boulders which is where most of the congers can be found.
Seen a seal! Not underwater though :( In between dives.