The dragon is Grendel. The slayer is Beowulf. The site of the slaughter is Aquatic Park in the City. As you might have guessed this is the latest active audience performance of We Players which has presented their elaborate productions outdoors at Fort Point and Point Lobos. This time (March 11 to April 16) the action will be moving along the north Bay waterfront. The audience moves with it to rousting banquets and deadly combat in this staging of the oldest extant long poem in English. Tickets $30-80.