A House aide confirmed to ThinkProgress that the House member’s gym is open. The House gym features a swimming pool, basketball courts, paddleball courts, a sauna, a steam room and flat screen TVs. While towel service is unavailable, taxpayers remain on the hook for cleaning and maintenance, which has been performed daily throughout the shutdown. There are also costs associated with the power required to heat the pools and keep the lights on.
http://thinkprogress.org/politics/2013/10/08/2748461/members-only-congressional-gyms-deemed-essential-remain-open-during-shutdown/

You know who else canceled towel service?