Merry Lake   Be the first to submit input for Merry Lake. If you have info on Merry Lake, Grant County, Washington please submit it here to improve this web site.          These outdoors activities are available near Merry Lake.   Public Lands Near Merry Lake: Potholes State Park, Washington, 35 miles away Moses Lake State Park, Washington, 38 miles away Lake Lenore Caves State Park, Washington, 38 miles away   Camp Grounds Near Merry Lake: Columbia RV and Mobile Park, Mattawa, 6 miles away   Hotels Near Merry Lake: Cave B Inn Spa, Quincy, 15 miles away The Crescent Hotel, Quincy, 18 miles away Rodeway Inn Sunnyside, Sunnyside, 27 miles away Sunnyside Inn Bed & Breakfast, Sunnyside, 27 miles away BEST WESTERN PLUS Grapevine Inn, Sunnyside, 27 miles away   Whitewater Near Merry Lake: Sand Hollow Creek, GrantCounty, 7 miles away       Class III-IV - 1.5 miles long (Highway 26 mile 2 to Columbia River)