The Ritz-Carlton, Naples

Just spent a weekend at the RC Naples. The lap pool, while striped and with nice anti-turbulence lane ropes, does not have targets. The center lane has what appear to be stainless steel speaker covers nicely located at each end, so grab that lane if you can. Otherwise, there is dark contrasting edge tile so you can hit your mark pretty easily. Hours are 'dawn to dusk' - no night swimming. The pool is shallow and warm, as noted. It's best first thing in the morning, when whatever evaporation there is makes it more tolerable. If the pool will be closed for an event, they post a sign at the walkway that most people use to access the pool to give you a heads up.

The lap pool frequently closes at 4 PM for private poolside parties (it did, every day during my stay) and the information is not published anywhere, so you have to ask at the front desk, or no lap swimming at the end of the day for you!

The water temperature in the lap pool is a little on the warm side, ~ 84º F., but lap swimmers have priority for pool use. There is another pool at the resort for recreation use.