A bike for Snorkeling?
The development of modern technologies has already made it possible to turn this fantasy into reality. It’s just necessary to put together and slightly improve the existing equipment. Water jets are already available, the Company Patriot3 has a product P3M. Although they are cumbersome, have a problem with design of storage batteries and are intended exclusively for divers (it seems dangerous for a beginner to use them without a diving suit), they were successful in operational tests. Compact towers in the shape of a tube, with an adequate choice of storage batteries are also available. (link for more)