Most are set up to serve both serious swimmers and casual splashers and anyone may use them for as little as a dollar or two.

Late in the afternoon when the tide has advanced nearly the width of the flat, there is plenty of water for serious swimmers.

"Nice flippers," I once heard a coach say to my daughter, a serious competitive swimmer, as he looked down at her big feet.

These were serious swimmers indeed who looked as if they were training for the English Channel.

(The water was warm when we were there, and too shallow for a serious swimmer's taste.)

There hasn't been a serious swimmer in recent history older than 30.

It is the same pleasure that draws cross-country skiers into the woods or serious swimmers into the pool.

Anyway, a two-piece is hardly suitable for a serious swimmer like me.

The spa itself is almost impossible to find behind a maze of exercise machines and a pool filled with serious swimmers doing laps.

Cotton and elastane one-piece suit will please both sun worshippers and serious swimmers.