Insane Inflatable 5K runners can save money by registering for the event on Friday.

The event will take place Saturday, September 19 on the UMaine campus in Orono.

Participants can save money by registering before Friday night at midnight, when registrations fees go up.

The course will include inflatable slides, mazes, military style obstacles and a finish line slide that's 6 stories high!

The Insane Inflatable 5K is appropriate for all age groups and levels of athleticism, from couch potato to experienced athlete. Participants can walk, jog or sprint. There's no pressure, just fun.

The event will benefit the Black Bear Fund at the University of Maine.