The Deer Isle Boat Show, sponsored by the Deer Isle-Stonington Historical Society, will take place in downtown Stonington on Hagen Dock. The event will highlight boats that have a significant connection to Deer Isle-Stonington. The Maine Marine Patrol’s boat, Sergeant, will be on display, along with lobster boats and sailboats. Maine Center for Coastal Fisheries will offer a touch tank and interactive touch wall at the Discovery Wharf.