A special Saturday with Ms. Barber awaits a lucky child and two friends. They'll spend the morning at the Marine Mammal Center, where they may get up close and personal with seals, sea lions, dolphins, porpoises and sea otters, depending on the time of year. The Marine Mammal Center, at Fort Cronkhite, is a nonprofit organization that rescues, rehabilitates and releases injured, sick and orphaned marine mammals along a 600 mile stretch of California coastline.