Port Allen Small Boat Harbor is N of the State pier on the E side of the bay. The harbor has 3 launching ramps, 38 berths, 6 mooring buoys, and a small pier.
Gasoline, fuel oil, and diesel fuel are available by tank truck, and water is piped to the wharf. Provisions are available in the principal towns on the island.
Hanapƒìpƒì Bay midway along the S coast of Kaua’i, is the approach to Port Allen. The bay is about 0.6 mile wide and about 0.4 mile long, and is protected from the SE by a breakwater marked near the end by a light.
A Federal project provides for an entrance channel which leads N past the outer end of the breakwater to a harbor basin in Hanapƒìpƒì Bay with a project depth of 35 feet in the entrance channel and basin. The harbor basin is marked by lighted and unlighted buoys on the N and W sides.
Port Allen is a customs port of entry.