A person that is swimming in a swimming cap are in a pool.
Two men in swim caps are swimming in lanes in a pool.
Two men are racing inside of a swimming pool.
Two men swim in a laned indoor pool.
A person is wearing a white cap swimming in a lane in a pool.
Several people  in the pool swimming in  a contest
Two people are swimming in adjacent lanes in this pool.
Two people slimming laps in a pool next to each other.
A man races as he swims in a race.
Several men wearing swimming caps and goggles are swimming quickly in a swimming pool.