Follow the guides from Eastern Outdoors on a three-hour sea kayaking tour ($59) of Passamaquoddy Bay. You’ll steer toward Navy Island and back, and along the way you’ll see nesting ospreys and sunbathing seals up close. Serious kayakers can embark on a full- ($95) or multi-day ($145 per day) trip out to the Fundy Isles to spot porpoises, whales, and bald eagles.
Throw on a bright orange flotation suit and bring a waterproof camera to spot whales with Fundy Bay Tide Runners. Experienced guide David Welch leads several trips ($55 for two hours) a day on a 24-foot Zodiac boat that include the chance to see several species, including minkes, humpbacks, finbacks, and extremely rare North Atlantic right whales.
Walk across the ocean floor when the tide is out (the waters here rise and fall some 27 feet daily) to Ministers Island, where former Canadian Railway magnate Sir William Van Horne built an escape for himself and his family in the 1890s. Take a tour of the sprawling estate ($15) or ride a horse-drawn wagon across the island ($15), but make sure to walk back to town before the tide rolls in and completely submerges the footpath.