The Watertown Senior Center will host a daylong trip Thursday featuring a New Hampshire garden tour, followed by a seafood meal and shopping in Maine. The trip will take place from 9 a.m. to 6 p.m., with the $61 fee covering transportation and tip for the driver, admission to the Fuller Gardens in North Hampton, lunch, and a coupon book to the Kittery Outlets. The trip starts at the turn-of-the-century estate, which includes 2,000 rose bushes, a Japanese garden, and a variety of perennials that bloom throughout the season. Then, the bus will head to the Weathervane Seafood Restaurant in Kittery, Maine, where participants can choose between a fried seafood platter, baked stuffed haddock, or sirloin steak for lunch. The outing will end with an afternoon of shopping at the outlet malls. For more information or to sign up for the trip, visit the senior center at 31 Marshall St. or call 617-972-6490.