One time, I went to one of my mom's friends from when they were in school together, in Arizona, and I saw that they had a pool, in their own backyard, and it was about 5 to 6 feet deep, in the deeper end of the pool.The pool was approximately 220 square feet in their backyard, and it was huge, well at least in my opinion. When I jumped in the pool, with my mom's friend's son Adam, we decided to play catch with a Nerf rubber and foam football, and so I decided that we could play catch, with his Nerf football. When we got the football in a bucket by the their hot tub full of water (play toys, such as water Frisbees, balls to play catch, and other sorts of stuff like that). After we got the football out of the bucket, we jumped in the pool, and we headed for the deep end, and we put our goggles on, so that we could see underwater. Then, I threw the ball to Adam and he caught it and then, for the next 20 minutes, we kept throwing the football back and fourth to each other.It felt foamy, because it was mostly made out of foam, plastic, and rubber, also it smelt like a lot of chlorine in the water. When we were done throwing the ball, we decided to go swim underwater for fun, and we tested how big our cannonballs were, be having a competition, to see how big our cannonballs were by testing ourselves. It was a great time to play with Adam and play catch with him with a football, and to swim in his pool in his backyard. All of the sounds I heard was all of the pool water splashing over the place in their backyard, with all of the pool noises that it was making. It was so fun for the day of swimming in their pool which was i their backyard.