Size: Round Pond (46-acres), Fish Hook (15 acres)
Features: Kayak access, shaded trails, varied terrain, tidal flats, sunset views.
Directions: From ferry, go left on Sands Rd. for 0.4 miles, then right on Old Harbor Rd. for 0.3 miles, then bearing slightly left onto North Haven Rd. for 2.5 miles, at which point you reach the junction of North Haven Rd. and Calderwood's Neck Rd.
Round Pond Trail, bear left at this intersection and park in gravel pullout 0.2 miles on the right.
Fish Hook Preserve, bear right at intersection and park in gravel lot 0.6 miles on left.
Round Pond Trail: Excellent opportunities to see warblers and other forest songbirds, dramatic granite outcrops with pitch pine forests; in all, two loops totaling 1.2 miles of trail, almost all shaded.
Fish Hook Preserve: Short, shady trail through mixed forest to a mature grove of red pines atop Fish Hook, a steep-sided peninsula that juts into the Mill River. A great place to see eagles, ospreys, loons, kingfishers, and assorted wading birds; also excellent views of mussel beds and clam flats, tidal waterfall, and midsummer sunsets.