BOP IT! 💥 This is how blind and vision impaired swimmers are notified that they are close to the wall. A tapper will gently bop the swimmer on the head. (Not all tappers/boppers hit their target!) 🎯 (In this video: Anastasia Pagonis, Elizabeth Marks, Karolina Pelendritou get bopped on the head in the pool.) #ParaSwimming #Paralympics #Tappers #BopIt