We have eaten at both many times(Rainforest at AK, and Coral Reef) and there isn't much they have in common. Rainforest-loud, dark, animatronic animals, large amount of food to choose from. Coral reef, calm atmosphere, huge tank(fish, sharks, turtles, rays, etc) not as much to choose from but very good food(a chicken, fish, seafood, steak options) I would say almost an adult atmosphere, but I am not the least bit afraid to take our kids there. Our kids love the blue glowing cubes they put in the drinks.