If you aren’t ready for scuba diving but don’t want to miss out – this is the answer. A space-age helmet lets you breathe as you stroll along the seabed in diamond-clear waters and hand-feed the fish. You don’t even need to be able to swim. A short introduction is all that’s needed and you’re away. With all the gear left on board, you don’t have to worry about heavy tanks. And you can even keep your glasses or contact lenses on. All you need is a sense of adventure.