The Bass Hole Boardwalk in Yarmouthport stretches about a quarter mile across a tidal salt marsh before ending at a small beach on Cape Cod Bay. The views are particularly good at sunset, when the light turns golden across the marsh grass and the water. In summer, herons, egrets, and ospreys are commonly seen; in autumn, migrating shorebirds and ducks use the marsh.
The boardwalk is free and accessible year-round. The parking area fills up in summer on weekends, so come early in the morning or in the evening for the best experience. The marsh is spectacular in late September and October when the grasses turn rust and amber. It's a short, easy walk — suitable for all ages — and one of the finest natural views on the mid-Cape.