I agree with the surrey bikes, the entertainers on the boardwalk are fun, the nightly marshmallow roast, nightly movies, the pool/slide has activities led by a cast member, the arcade, there is a small playground area (I'm not sure of the ages of your children.) We played the carnival games and had caricatures made of our children. There is a small ice cream/candy shop. ESPN for appys or a meal and maybe watch a game. You can rent boats or water sprites at the Yacht Club. It is a little bit of a walk but across the street from the Dolphin there is Fantasia mini golf.