(MD) (Montgomery Parks) It may not be Munich or Theresienwiese, but Montgomery Parks is transforming Lake Needwood in Rock Creek Regional Park into Parks Ale Trail — just in time for Oktoberfest. Join us for live music, local craft beer, food and hiking. You can head out on a 2.5-mile roundtrip hike and take in the beautiful sights and sounds of Lake Needwood. Take a break at the mid-way beer garden at the Needwood Mansion to wet your whistle.