Hate tight squeezes and cold, wet spaces? Then forget about traveling on the first submarine. If you don't get stuck sliding down the hatch, you'll still wind up wading through ankle-deep water in ridiculously cramped quarters. And if you don't pump fast enough, that would could reach your neck - or higher!Hate tight squeezes and cold, wet spaces? Then forget about traveling on the first submarine. If you don't get stuck sliding down the hatch, you'll still wind up wading through ankle-deep water in ridiculously cramped quarters. And if you don't pump fast enough, that would could reach your neck - or higher!