The Helderberg Nature Reserve is situated in the Hottentots Holland Mountain range just above Somerset West.
The Reserve supports the protection of critically endangered Swartland shale renosterveld , Kogelberg sandstone fynbos, Cape Winelands shale fynbos and pockets of Afro-temperate Forest.
The reserve is home to 613 plant species, 13 of which are threatened with extinction. In the deep, more fertile granite soils, species such as the waboom (Protea nitida), and the green sugarbush (Protea coronate) form a fairly dense, closed shrubland. Helderberg Nature Reserve has a confirmed bird list of over 170 species which includes all seven of the fynbos endemics.
A mammal list comprising 42 species has also been recorded. The Cape leopard (Panthera pardus) has been sighted on the slopes within the reserve, as well as the striped weasel (Poecilogale albinucha), honey badger (Mellivora capensis) and the recently re-introduced grey rheebok (Pelea capreolus). Smaller mammals such as grey duiker (Sylvicapra grimmia) and Cape hare (Lepus capansis) are often seen within the well maintained picnic sites.
30 reptile and eight amphibian species have been recorded in the reserve, of which the leopard tortoise (Stigmochelys pardalis), although not locally indigenous to the area, is the most commonly spotted. Amphibians such as the clicking stream frog (Strongylopus grayii) and De Villiers moss frog (Arthroleptella velliersi) can be heard from the many streams and pools in the area.
The five hectare Silwerboomkloof Section of the reserve conserves a forest of silver trees (Leucadendron argenteum) along with granite fynbos and renosterveld. The area is accessible from Van Gogh Road in Somerset West.
The Friends of the Helderberg Nature Reserve, a key partner with the City, assist with environmental education, provision of information at the Maskew Miller Information Centre and Herbarium and run the indigenous plant nursery.
Other public facilities include the Oak Café which serves light meals, tea and coffee, universal access boardwalks that are located in the lower part of the reserve, and an extensive trail and footpath network snake their way around the upper slopes.
The picnic sites are well maintained and are serviced daily, and have large ablution facilities to accommodate the many visitors the reserve receives.
