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 Nadia's Trattoria Authentic Italian Cuisine Gilford, NH Other Attractions Four Stroke Marine Gilford, NH Other Attractions Gunstock Mountain Resort and Recreation Area Gilford, NH Businesses Ellacoya Resort & Cottages Gilford, NH Businesses