Old Quarry Ocean Adventures offers tours, classes and rentals for sea kayaking. Visitors also can board the charter boat with their kayaks for trips to faraway islands.

Atlantic mackerel are slender, fast-moving migratory fish that swim in tight schools. They’re seen as far south as Cape Hatteras and as far north as Newfoundland.

In a 19th-century shingled building, removed from the bustle of Bar Harbor, Pamelia Markwood opens the front door and welcomes visitors into The Naturalist’s Notebook.