Water trampoline can be played on the water and on the land. As fun as the water trampoline may get, you should also consider the possibility of safety and danger to enjoy the best time. When you play on the water, especially on the ocean and the lake, whether you can swim or not, you should really wear the life jacket for the sake of safety. It is simply because you do not know how deep the water can get and you may get foot cramped when you bounce a lot. On the other hand, you play on the land, you should really wear a helmet in case of falling on the ground with head down. And children should also wear the pulley sets to protect the knees and elbows.