Castine and the Blue Hill area peninsula has some of the best hiking trails on the coast of Maine. This expansive view of Penobscot Bay from Witherle Woods is located right here in Castine, Maine and includes more than 4 miles of networked trails. The view from Witherle Woods overlooks the bay out to Isleboro and the Camden hills in the distance. Witherle is a 185 acre preserve leading through a forest of spruce, fir, pine and hardwood trees.