Multiple public access points to the Merrimack River in Merrimack County offer boating and fishing opportunities, including boat ramps and cartop facilities at locations like Boscawen Town Park, the Merrimack County Boat Launch (state facility), and Riverland Conservation Area in Canterbury.

Several sites provide trailer ramp access with parking, while others offer cartop or walk-in access for canoes and kayaks. Trout waters in some sections; check specific site conditions and any speed restrictions before visiting.