"I am swimming in a pool" is a reinterpretation of Alvin Lucier's well-known audio masterpiece "I am sitting in a room". The resonant frequencies of a pool/lake nearby Kleylehof will be discovered and streamed using a closed feedback loop and self-built underwater sonic devices. A submerged hydrophone (used as a microphone) is used to pick up audio waves which are propagated by an underwater transducer attached to a large metal surface (used as a loudspeaker). People will be invited to experience the piece by swimming in the pool with waterproof headphones. With their bodies in the pool, the audience will affect the resonant properties of the space in real-time, while enjoying the live signal on their headphones. Outside of the pool/lake there will be an amplifier playing back the result of this interference.