Top Gloucester Dolphin Watching in 2026

Give yourself the best chance of seeing whales in the wild on this half-day boat tour from Gloucester to the Stellwagen Bank National Marine Sanctuary. Hop on a high-speed catamaran that gets to and from the whales in the least amount of time possible. Once there, look out for humpback and fin whales, plus Atlantic white-sided dolphins and harbor porpoises with the help of a naturalist guide. The on-board galley offers hot meals, snacks and beverages for purchase during the trip.