Red,it's bloody cold,I only went to the very bottom twise and felt un easy,depends what you're used to and the depth you are able to cope with.

At the bottom They used to have a vw camper,a bus,airplane cockpit (just about squeeze in if you're thin enough lol) and other stuff yo keep the diver ocupied.

they used to have and sure they still have thier own compressors for air,on site shop with restaurant and pub which serve good food.

They used to do night dives also which were good fun.

I have to say I haven't done scuba for a long time now,but did like stoneycove when I did it.

Here's the shop site http://www.underwaterworld.co.uk/

and here's the cove and diving centers site http://www.stoneycove.co.uk/