You are bidding on two things.  First, a gift certificate for brunch for two people at the Beechwood Hotel, 363 Plantation Street, Worcester, MA and a glider ride for one.

Second, the Greater Boston Soaring Club which operates out of the Sterling, MA airport is offering one person the chance to experience unpowered flight.  This "introductory flight package" includes an introduction to glider flight on the ground.  GBSC provides you with a certified Commercial Pilot (or certified Instructor if available), a two-place glider, and a 3,000 foot aerotow,  The actual flight itself ordinarily lasts 15 to 20 minutes.