Summarize the following:
Depending on the pool, the diving boards will be set up at different heights. Stand with your feet together and your toes over the edge of the diving board. Stretch your arms above your head, with your biceps touching your ears. Slightly flex your knees, tuck your chin into your chest, and dive towards the water, hands first. Practice diving from the edge of the pool. Once you've perfected that, move up and dive from the lowest diving board. Practice by standing upright and letting yourself sink slowly to the bottom of the pool. Before you sink, take a deep breath and breathe the air from your mouth as you move downwards. When you start to run out of air, don't panic. You need to be able to relax for a few seconds and tell your body you're not in danger. After a few seconds at the bottom, push back up to the top.  Practice this technique a few times before you swim to the floor of the pool. Obviously if you're really low on air, go back to the surface as soon as you can. Have a friend watch you the first few times you swim to the bottom or practice this exercise. This will put you at ease in case anything goes wrong. The turn is an effective but difficult swimming move. When you reach the end of the pool, you can kick off the wall and swim back the way you came. Put your hands on the wall and keep your body flat as you float in the water. Kick your legs if you want to. When you're ready, bring your legs in and kick the wall with the soles of your feet.  As you kick, bring 1 of your elbows back and turn your shoulders. Straighten the elbow you brought back so it's level with the surface of the water. Bring your other arm in over your head. Slice into the water with your hand. Keep an eye on your hand as it passes over your head. Push away from the wall with the soles of your feet and twist your body to get back into your starting position. A good way to enjoy swimming at the pool and to improve as a swimmer is to have a race with your friends. If your friend is a better swimmer than you are, give yourself a head start in the race. Swim in a lane each to the opposite side of the pool and back. Make sure you don't inconvenience any other swimmers when racing in the pool.

Summary:
Dive into the pool. Swim to the bottom of the pool if you want to test yourself. Turn at the wall to improve your skills. Race your friends if you want a fun challenge.