beneath beneath the water buried burying your head duck ducking ducking your head going under immersed underwater acceleration access animals automated boat boat-ride bumping bumps channel conditional creatures display displays elevation-changes enclosures flowing guests immersive-experience limited-accessibility rainforest ride safety sight-seeing small tourists visitors water water-ride wet wet-journey wild-journey wildlife zoo blemishes blue body parts child container cool foot fun plastic scar skin toes water container wet toes