The sighting was reported to Froglife's wildlife information service - a public advice service encouraging people to get involved with amphibian and reptile conservation.
In England, the Surrey Amphibian and Reptile Group deploys volunteers to about 35 different sites southwest of London to help toads cross the road each spring.
The forests of the site include some of the best representatives of non-equatorial tropical evergreen forests anywhere and are home to at least 325 globally threatened flora, fauna, bird, amphibian, reptile and fish species.