Jordan Pond’s clear waters nourish an array of life, including humans. Besides serving as wildlife habitat, the lake, Acadia’s deepest at 150 feet, provides drinking water for nearby communities and Jordan Pond House. The water is so clear that you can normally see at least 45 feet below the surface, making it the clearest lake in Maine. To safeguard the water’s purity, wading, swimming, and any other body contact are not permitted. From the shore, visitors can look for dragonflies, loons, brook trout, frogs, beavers, and eagles. Boats are allowed because they keep humans, the greatest threat to drinking water, out of the pond.