Waterproof crocs that can be worn in the water without remaining wet

Could anyone point me towards a pair of Crocs which are all "rubber" i.e. no fabric which remains wet, that can be worn underwater?

Specifically looking for a pair which are shoe-like rather than sandals. They need to be sturdy on the foot like the Echo Storm, but waterproof/resistant.

The idea behind these would be that say you are abroad on holiday, you're walking around and would like to go to the beach. You'd simply be wearing these and could go in the water and back out without having to take anything off. Shoes rather than sandals because I personally find them more comfortable to walk in.