WHAT IS "YOUR" MISSION? Picture GET INTO SHAPE, IN STYLE, IN SAN MARINO'S NEW MISSION FITNESS CENTER If you want to get into shape but don't want to join a large and overcrowded gym, the new Mission Fitness Center in San Marino maybe just what you're seeking. Fitness professional Wendy and Chris Grace, who will launch the center on June 4th, say that one of their primary goals is to treat people like people, "not just another number," Wendy explains. "Here, everyone will know your name." This boutique gym is in a beautiful brick building in San Marino's Mission District, at 2451 Mission Street, just east of Garfield Avenue. Minutes away from Pasadena and Alhambra. The space has the sunny, airy feel of an art studio, with high ceilings, exposed brick and wood walls, and huge paned wind