Just a reminder to Bay Area seniors who want to give their grandchildren (or themselves) a rollicking 3 hours of 18th century oceanic adventure. Over the next few weekends the brigs Lady Washington and Hawaiian Chieftain will be performing mock naval battles in the Bay. The action includes booming cannons and hand-to-hand combat. Lady Washington, a veteran of the film “Pirates of the Caribbean” regularly voyages from Oakland to Sausalito, Sacramento and Half Moon Bay. The crew encourages you to help hoist sails and steer.The only way it could be more fun is if you were captured by pirates.