Pool safety is EXTREMELY important. One is to not run by the pool. Another is always swim to your right side during practice. This will prevent any and all collisions with other swimmers. It is also good to make sure to dive while around others and only dive in deep areas of the pool. Then learning how many pulls it takes to hit the wall during backstroke is needed to prevent had injury. Don't go into a freezing old pool is also important. Let's not forget swimming during a storm. Though if something does happen you need to know what to do.