While not a "rail-trail," the Hook Mountain/Nyack Beach Bikeway is a very scenic trail along the Hudson River in Rockland County.
The southern half of this trail is flat and runs right along the river at sea level. It is wheelchair accessible from the parking lot at Nyack Beach State Park and even beginner bicyclists can easily travel on it. There is a paved connection to the Rockland Lake State Park area from this trail.
The northern half of the trail is hilly, narrow and quite rocky. It runs along the cliffs and should only be ridden by experienced bicyclists riding bikes in good condition.
Great views of the Hudson River and Palisades Cliffs rock formations are available from either trail segment.
If you live in the Rockland County area this trail shouldn't be missed.
Parking and Trail Access
A parking lot is available at Nyack Beach State Park. During peak season periods, parking fees are collected. There is no on street parking in the Nyack area. Very limited on street parking is available in Haverstraw at the northern terminus.