Does MIT sophomore Lindsey Sheehan like the water? You might say so. A distance competitor for the women’s varsity swim team, she also plays on the women’s club water polo team and performs with (and coaches) a synchronized swimming group. Sheehan, a California native, lifeguards 10 hours a week, too. The Zesiger Sports and Fitness Center has seen a doubling of student involvement in swimming and other forms of recreation since it opened in 2002, and Sheehan’s among the center’s admirers. “It’s great,” she says, adding that there’s more to the story than simply the facilities themselves. “The staff are really nice,” she notes. “It’s a good place to deal with the pressures you face at MIT.”