Bay seniors seeking aquatic serenity are encouraged to dip their paddles into waters an hour north of city, sea kayaking at Point Reyes National Seashore. There are considerable tour options. Try gentle Tomales Bay at sunset with upclose views of ospreys and pelicans.4 hours for $89 includes dessert. Starting in July set off around Drakes Estero along with harbor seals, white pelicans and leopard sharks. 4 and 6 hour tours with snacks starting at $85. They also offer overnight excursions and the spectacular biolumiesnce tour where you drift over glittering sea life.