Any workout that you do in the pool you can do in open water. We have done IM, sprint and kicking workouts. We have done relays, sharks and minnows and played water polo. Use your imagination. Courses are easy to set up. Anything that floats can be used as a buoy. Just attach some rope and a five or ten pound weight and drop to the bottom. I use the 20 inch Air Head Buoys https://www.airhead.com/ The personal swim buoys are great as well. They are a great safety tool but you can use ...