This Ellis Island of the West is where, from 1910 to 1940, authorities held Chinese im­ migrants until they passed their admission-to-the-U.S. exams. Have a picnic. Tour the historic barracks. On the walls, detainees wrote poems expressing their anger, fears and hopes for life in the city they called Gam Saan, the Golden Mountain. To get to 22 Angel Island, take a Blue & Gold Fleet ferry at Pier 41 (415-773-1188).