“TWO YEARS BEFORE THE MAST” Two performances daily, 6:30 and 8:30PM; Friday July 16, Saturday July 17, Friday July 30 and Saturday July 31. Tickets $25. Walkups available, reservations suggested. Call 415-561-6662 for information. In 1834, Richard Henry Dana dared to voyage from staid Boston to the rough-and-ready Pacific Coast. This summer, acclaimed actor Jeffrey Paul Whitman brings that adventure back to life at Hyde Street Pier with a captivating, one-man performance aboard the 1886 sailing ship Balclutha. Whitman takes Dana from greenhorn to experienced sailor, and transports the audience back to the days when all a young man needed for adventure was a steady ship and a star to steer her by.