The Port and Harbor Commission is the governing body for the Port of Whittier. The ice-free Whittier Small Boat Harbor is a year-round gateway to Prince William Sound. The Port of Whittier offers 350 slips for permanent and transient vessels up to 16.5 meters long. Ferries in the Port of Whittier offer passage on the Alaska Marine Highway.
The Port of Whittier and the Whittier Small Boat Harbor participate in the US Coast Guard's "Kids Don't Float" program, offering life jackets in a variety of sizes at its walk ramps. The Port of Whittier also asks that water-skiers, boaters, and kayakers file a float plan at the harbor office.
The Port of Whittier Small Boat Harbor is currently filled to capacity. Boaters wanting to moor in the Port of Whittier must get on the waitlist with no expectation of getting a berth for years.