4 mile walk from Brixton Tube station to Herne Hill walking through Brockwell Park.
Paved throughout
Some lovely sights including a Windmill.
Train: Brixton Station is on the Victoria line. Herne Hill station is on national rail lines to Victoria and Blackfriars Stations.
Lunch: cafes in Herne Hill or bring a picnic to eat in the park.
Toilet: there are toilets in Brixton (in the library in Windrush Square and in Morley's store opposite the tube station) and in Brockwell Park and at Herne Hill Station.