If we think of ourselves as guests when using the islands, we can't go too far wrong. Leave all pets at home. Please avoid seabird nesting islands from early April to mid-August. If your presence is causing birds to leave their nests, you are too close. Avoid islands with eagles entirely.
Disturbance can cause seals to flee, leaving pups exposed and vulnerable.
Stay far enough away from the ledges so that the seals do not flee into the water. When you cruise the Maine coast, you are among thousands of other boaters. If there are other people on the island, respect their privacy. Look for a landing site some distance away, or consider another island altogether. Help preserve the wilderness look of the island by keeping your visual impact low.