Ice dive to HMS Erebus wreck a test of preparation and stamina in High Arctic

It's a hell of an adventure - if you're prepared.

Peering over the edge of a triangle cut through turquoise sea ice, you can see the port side of HMS Erebus, her wooden hull encrusted with mussels, sponges and other sea life. She’s standing tall on the seabed.
The upper deck, where the last sailor surrendered the ship to the Arctic in the mid-19th century, lies just four metres beneath the surface. The sea floor is roughly the same distance from the ship’s deck.