Towel, goggles, swim cap (for extra warmth), and swimming suit (speedo, jammers for less drag). For anything that involves a swim practice, please bring a water bottle or sport drink for hydration.
For any open water courses, please bring a wetsuit, extra goggles, extra towel, warm clothes, sunscreen, water bottle, snacks, and any other gear that you already have. You may also want to bring neoprene socks and gloves for some cold water swimming. In winter, a full hood is required.