Ellacoya State Park Ellacoya State Park is located in Gilford on the southwest shore of Lake Winnipesaukee, New Hampshire's largest lake. The 600 Gilford, NH State Parks Endorfun Sports LLC Voted 2003' Gilford, NH Other Attractions WLNH Gilford, NH Other Attractions Heirlooms & Old Lace Gilford, NH Other Attractions Victorian House Gilford, NH Other Attractions