Shelter/gazebo permits are issued to Oak Lawn residents only on a first-come, first-serve basis beginning February 15 of each year. The shelters/gazebos at Centennial, Memorial, Wolfe, and Worthbrook parks are available for dedicated use with permit May 1st through Columbus Day. Cost is $100 plus a $50 deposit. Permits are necessary for use by all groups of 10 or more. Shelters in other parks are open for the public to use at all times. Electric is available at Wolfe shelter only for an additional $50.00. For more information call (708) 857-2201.