Sunapee Harbor Boat Ramp features a double-wide concrete paved ramp managed by the Town of Sunapee with ample amenities including free parking, seasonal bathrooms, picnic facilities, and drinking water.

The ramp is busy with motorboat traffic and two large commercial excursion boats, though kayakers can use the adjacent sand beach launch area. Lake Hosts staff the ramp May through September to perform courtesy boat inspections for aquatic invasive species.