This is a section of the London-Lewes Roman road which Ivan Margery excavated in 1939 at Hoylte, close to the East Sussex/Kent/Surrey borders. He bought the land involved and the footpath which leads to it and presented them to the Sussex AS. The excavated surface has now been covered up to protect it from the weather, so you can’t actually see anything, but it does seem to have been sprayed with weedkiller to prevent it being damaged by roots, etc.