The park was reclaimed from the site of the former Craighall sewage disposal works.
It is home to the Delta Environmental Centre, a pioneer in South African environmental education since 1975.
The Braamfontein Spruit, which runs through the park, is one of Johannesburg's longest green lungs.
The area is recognized as an Important Bird Area (IBA) due to its high diversity of resident and migratory bird species.
The park contains the Florence Bloom Bird Sanctuary, a smaller fenced enclosure specifically designed for habitat conservation.
Delta Park is one of Johannesburg's largest green spaces, covering 108 hectares of grassland, woodland, and wetland ecosystems. The site is a former sewage treatment plant that has been rehabilitated into a diverse urban sanctuary. It serves as the headquarters for the Delta Environmental Centre, which promotes environmental education. The park features an extensive network of walking trails and cycling paths surrounding three large dams. It is a significant birding destination, with over 200 species recorded within its boundaries. The Braamfontein Spruit river flows through the park, providing a riparian corridor for local wildlife. The terrain is largely undulating, offering varied views of the Randburg and Victory Park suburbs. The park is managed in partnership with local community organizations to ensure ongoing maintenance and conservation.
The wooden boardwalk and observation hides overlooking the dams in the Florence Bloom Bird Sanctuary.
Carry drinking water and snacks as there are limited commercial facilities within the park grounds.
Remain on clearly marked paths, particularly in secluded areas, to ensure personal safety.
Visit with a group if you plan to walk or cycle in quieter, less populated sections of the park.
Walking alone in isolated sections of the park during off-peak times or late in the evening.
Keep dogs on a leash in designated areas, remove all litter, and respect the bird sanctuary by keeping noise levels low.