In early 2007, College of the Atlantic professor Dru Colbert transformed Somes Pond on Mt. Desert Island into an otherworldly, ice-encased spectacle, using light, shadow and carefully organized props and performers to create a true fantasyland, titled “Graupel.” As with that performance, Colbert’s latest installation, “Flotsam,” will bring together all those elements to tell a new story. “Flotsam” is based on historical events, namely a shipwreck that occurred in 1867 in Frenchman Bay. Colbert and her students will explore those events, and the bravery and sadness of the lives lost at sea, with a performance set for Otter Cove in Acadia National Park. The performances of “Flotsam” are scheduled for 4:30 p.m. Oct. 16-18, and admission is free, though donations to the Otter Creek Aid Association will be accepted. Dress warmly, wear sturdy shoes, bring a flashlight, and something to sit on if desired. To get there, take the Park Loop Road from any entry point. Go past Thunder Hole and Otter Cliffs toward Otter Cove. Park at Fabbri Picnic Area, off the Park Loop Road (and take a short walk further downhill on the Loop Road to the performance) or drive farther and park along the Causeway where the Loop Road crosses Otter Cove. Any changes to performance dates because of unfavorable weather conditions or unforeseeable incidents will be posted at www.drucolbert.net.