On a warm afternoon in early March 2026, a puff adder (Bitis arietans) was spotted basking on the rocky shoreline near the Shark Bay viewing area at Langebaan Lagoon. While encounters like this are infrequent, they're a powerful reminder that this is wild South Africa — and that sharing the landscape with its original inhabitants is all part of the experience.
About the Puff Adder
The puff adder is Africa's most medically significant snake — not because it's the most venomous, but because it's responsible for more snakebite fatalities than any other species on the continent. This is largely due to its wide distribution, its habit of lying motionless on paths and warm surfaces, and the fact that it does not always rattle a warning before striking.
Despite their fearsome reputation, puff adders play a crucial role in the ecosystem. They control rodent populations and are an important part of the food chain. In Langebaan's fynbos and coastal scrub habitats, they are a natural — if rarely seen — resident.
Identification
| Scientific name | Bitis arietans |
| Length | 60–100 cm (occasionally up to 150 cm) |
| Colouring | Yellow-brown to grey with dark chevron markings |
| Head shape | Broad, triangular, clearly distinct from the neck |
| Body | Heavy, robust — distinctive "puffed up" appearance |
| Movement | Slow and rectilinear; often lies completely still |
| Venom type | Cytotoxic — destroys tissue at the bite site |
Behaviour and Habitat
Puff adders are ambush predators. They rely on camouflage and patience rather than speed, lying motionless for hours or even days waiting for prey. This makes them particularly dangerous to humans — they are very easy to accidentally step on.
At Langebaan, puff adders are most active in spring and summer (September–April) when temperatures are warm. They favour rocky outcrops, low scrub, and the edges of sandy paths — exactly the kind of terrain found around the lagoon.
Snake Safety at Langebaan
- Always wear closed shoes when walking in coastal scrub or on rocky paths.
- Watch where you place your feet and hands, especially when stepping over rocks or logs.
- Keep dogs on a lead — dogs are particularly at risk of being bitten on the face or nose.
- If you see a snake, do not try to kill it — this is when most bites occur.
- At night, carry a torch when walking outside.
What to Do If Bitten
- Call emergency services immediately: 112
- Keep the victim calm and still — movement increases venom spread
- Immobilise the bitten limb below heart level
- Do NOT cut the wound, suck out venom, or apply a tourniquet
- Get to hospital as quickly as possible — antivenom is the only effective treatment
Conservation Note
Snakes in South Africa are protected by the Nature Conservation Act. It is illegal to kill, capture, or disturb them without a permit. If you encounter a puff adder in a situation where it poses a risk to people, contact a trained snake handler. Cape Snake Conservation provides a 24-hour callout service for the Western Cape.