The divers are Foundry that I picked up from Col Bills at the Durham show. The stones from my garden except the flat one which is a piece of crinoidal limestone (Crinoids are tulip like corals from the permian (250 million years ago but are still around today as Sea Lillies.). The sand from the local beach, just to keep the marine them going. The sand is not glues in place, I tried this but it looked wrong.
The Octopus was found at Tynemouth market after a couple of months of searching. It is soft plastic and was tricky to repaint. It's a little shiny but I'm pleased with the effect. To be honest the whole scene looks like I've just photographed an aquarium