A snorkel session along the jetty at Red Reef Park will remind any South Florida resident or visitor that it is absurd to associate glowing tropical fish and swaying coral with a desktop screen saver rather than the eye-popping live experience. Especially since this precious Boca Raton spot makes the underwater world of eels, seahorses, brain coral, and clownfish so easily available. All a curious mammal has to do is strap on a dive mask and wade in from the beach. In an instant, the noisy reality of I-95, office cubicles, and endless chatter vanishes and one is floating in a luminous dream. After a spectacular snorkel, a picnic at one of the park's pavilions is a nice way to gradually reenter the world of gravity and traffic lights. The parking fee of $16 to $18 is a small price to pay for such a therapeutic excursion.