Hello, we are going to Las Vegas for 10 days in August (I know, it will be HOT!) to stay with family and I was just looking for any ideas of things we could do with our 5 yo (soon to be 6) DS. (We also have a 4 month old baby.) I've heard there's an aquarium and we will visit Hoover dam/lake Mead, the Grand Canyon etc but not sure what else? Thanks in advance