Has anyone seen today's Baltimore Groupon?
It's a Pub Crawl... on a "Pedal Mill" ... Biking with 15 of your friends.
Now you can get trashed WHILE biking and work off those unwanted calories!
Two-Hour Pub-Crawl Fietscafe Bike Ride for One, Two, or Four from Charm City Pedal Mill
(Only issue is biking that much could loose your buzz... and you may have to drink more).