You can get one each. The lockers each have the key hanging in the lock when the park opens. If there is not key in a lock someone is already using it. We each get our own so that we can get in when we need. There are a few areas that have hundreds of lockers, and the ones closest to the Laguna Grill will fill first. Follow the path towards the Grand Reef and you will see more. Remember to leave your key in the lock when you are done for the day.