Cooby Creek is impounded by Cooby Dam, a rock-fill embankment dam located approximately 17 kilometres north of Toowoomba in the Darling Downs region of Queensland. The resulting reservoir, known as Cooby Creek Reservoir, is the primary paddling venue on this waterway. The dam was constructed in 1938 and opened in 1942, and is operated by the Toowoomba Region Council primarily as a potable water supply for the Toowoomba region.

Access to the water is provided via a dual-lane concrete boat ramp at Groomsville, reached via Creek Road. The ramp gives paddlers straightforward entry to the calm reservoir waters. Kayaking and paddleboarding are both permitted on the reservoir, and the flat, sheltered nature of the impoundment makes it suitable for recreational paddling. Swimming is not permitted in the reservoir, as it serves as a drinking water supply.

Fishing is a significant activity at the reservoir, with the water stocked with yellow perch, silver perch, Murray cod, and Tandan. Anglers require a Stocked Impoundment Permit (SIP), obtainable online, though it is worth confirming whether this requirement extends to paddlers who may incidentally interact with fishing areas. Paddlers should be aware of fishing activity, particularly around the boat ramp and shoreline areas.

Onshore facilities are well maintained and include undercover gazebos, picnic tables, BBQ areas, toilets, a children's playground, and ample parking. The surrounding area features open grassy spaces and tree cover, with views across the water. The reservoir sits within the broader Darling Downs landscape, roughly 17 kilometres from Toowoomba, making it a practical day-trip destination for paddlers based in or passing through the region.