Rocky Dam Creek is a tidal stream located in the Koumala and Sarina area of Queensland, Australia, at approximately 21°36'S, 149°20'E. The creek has an estuarine character, with muddy water and conditions that are heavily influenced by tidal movements. The waterway supports species such as Barramundi, Javelin grunter, and King threadfin, which points to its brackish, tidal nature.

The primary access point is the Rocky Dam Creek Boat Ramp at Koumala, which features a single-lane concrete ramp providing direct launch access to the creek. Tidal conditions significantly affect usability — after large tidal movements, residual mud is common on and around the ramp, and launching at low tide can be difficult. A 4WD vehicle is generally recommended for accessing the ramp under these conditions. There is a large compacted dirt area on-site that accommodates vehicle and trailer parking.

Facilities at the ramp are minimal. There are no toilets or showers, so visitors need to be fully self-sufficient and should bring their own water, including water for washing off mud. Insect repellent is strongly advised, as midges and sandflies can be particularly heavy in the area. Anyone planning to spend time at the site should come prepared for a remote, no-frills experience with no amenity support on location.