Climb aboard the Rockin' Aquarium Gym for undersea action and fun! Baby's natural movement (or batting or kicking at toys) 'rocks the boat', which activates lights, five tunes and three aquatic sounds plus lots of underwater movement in the 'aquarium' on the toy bar! Parent can also activate five minutes of continuous play. Once baby's ready to sit up, the toy bar easily swings down and the 'aquarium' becomes the steering wheel. So baby can rock and play the day away! Includes removable fishy friends with rattle and jingle ball, lobster and fish teethers. Machine washable pad. Requires 3 x C batteries (not included). Suitable from birth.