As of 2026, the Port of Cairns features a primary shipping channel with a design depth of 9.0 meters (approximately 29.5 feet) at Lowest Astronomical Tide (LAT). Following major expansion projects in recent years, the channel was deepened and widened to allow larger cruise ships and cargo vessels to access the city’s wharves. The inner harbor also maintains a depth of around 9.0 meters, though specific areas like the Crystal Swing Basin may be slightly shallower at 8.5 meters depending on the most recent dredging cycle. For deep-draft vessels, the port operates with tidal windows to ensure safe under-keel clearance. This infrastructure is critical for the North Queensland economy, supporting both the massive international cruise industry and the Royal Australian Navy base, HMAS Cairns, which requires reliable, deep-water access for its fleet.