Peirce Island Boat Launch (Robert P. Sullivan Boat Launch) in downtown Portsmouth offers convenient access with ample parking and easy water access for both motorized and non-motorized craft.

Portsmouth residents receive free season passes, while non-residents pay per-launch fees ($10 for kayaks/canoes, $20 for motorized boats) or can purchase seasonal passes.

The facility opens seasonally around Memorial Day and includes kayak rack storage available for an additional fee.