Constant Creek drains the country between Mount Jukes and Cape Hillsborough, about 40 km north of Mackay, and the ramp is at the end of Howells Road off the Seaforth road. It is a single concrete lane with a car park for about 15 rigs and nothing else. The state register flags it as tide-limited; like every creek ramp on this coast, it is a top-half-of-the-tide launch, and the creek is a long, winding run to open water.
The creek fishes for barramundi, salmon, mangrove jack and mud crabs, and its mouth opens onto the coast just south of Cape Hillsborough National Park, with Seaforth and the Newry Islands to the north. It is quieter than Victor Creek and used mainly by locals in tinnies and small trailer boats.
For a bigger boat, an all-tide launch or facilities, use the four-lane Victor Creek ramp at Seaforth about 15 minutes further on. Marine Rescue Queensland Mackay monitors VHF 16. Crocodiles are present in Constant Creek; stinger season is October to May.