Lake Hawthorn is located on the outskirts of Mildura in Victoria, Australia, in the suburb of Cabarita. The lake originated as a drain from the old irrigation system and its water levels fluctuate considerably depending on rainfall — filling after rain and drying out during extended dry periods. Kayaking and canoeing are explicitly welcomed on the lake, making it a viable paddling destination for those passing through the Mildura region.

Access to the lake is available via Dyar Avenue in Cabarita, where the Cabarita Community Inc operates a community centre that also serves as the entrance to the walking trail around the lake. Vehicle access via Riverside Avenue is possible, though the road around the lake and the adjacent Lake Ranfurly is described as very rugged and best suited to mountain bikes rather than standard bicycles. Paddlers should be aware that the lake's banks are consistently muddy and carry a strong smell of hydrogen sulfide (rotten-egg gas), particularly on hot summer days. This odour is a known and ongoing issue for the area. Footwear that can handle smelly mud is advisable when launching or landing.

The lake sits adjacent to Lake Ranfurly, separated by a road, and a bird hide is located in the area between the two lakes. The surrounding landscape features notable birdlife, including endangered migratory species that visit across different seasons, making the lake of interest to wildlife-oriented paddlers. The vegetation, light, and cliff views — including those toward the Merbein winery cliffs — contribute to a visually distinctive environment.

Lake Hawthorn connects to a broader network of walking and cycling trails that link Dyar Avenue through to the Murray River, Merbein Common, and Mildura Apex Park on the main riverfront. Sunrise and sunset are noted as particularly popular times for visiting the lake. Free viewing binoculars are available near the lake for observing waterbirds, and a picnic table is on site. The Cabarita Community Inc, a registered Landcare group, is actively involved in environmental management of the lake and its surrounds.