Mid Week Working Party members observed two adders basking in the sun in a meadow adjoining the Wey & Arun Canal above Devils Hole Lock.(Photo: Alison Saville)

The female adder.(Photo: Alison Saville)

The male adder.(Photo: Alison Saville)

The (dark) female scarpered into the shrubbery as more people arrived to take a look.(Photo: Alison Saville)

The male enjoys the sunshine for a while longer.(Photo: Alison Saville)

The (paler) male dozed on until their heavy tread of the spectators became too much to put up with and he too retreated into the shrubbery.(Photo: Alison Saville)