This is a cake i did for my brothers 10th birthday. It's a cookie cake. For the water, I used light blue frosting mixed with clear, and dark blue piping gel to give it a wet effect. For the sand i used brown frosting with brown sugar for sand. Teddy Grams in gummy Life Savers candies ( for more detail, i used frosting and piped bikinis and sunglasses on some of the Teddy Grams) In the inside i put dark blue frosting with "happy birthday" on it. This is a very easy, fun cake to make that will empress lots! I also used drink umbrellas on the sand and put Teddy Grams under them like their sun bathing.