The Bakerloo line is a London Underground line that runs between Harrow & Wealdstone in suburban north-west London and Elephant & Castle in south London, via the West End. Coloured brown on the Tube map, it serves 25 stations, 15 of which are below ground, over 14.4 miles (23.2 km). It runs partly on the surface and partly in deep level tube tunnels.

What makes this route unique is that connects three separate parks, all within 0.75 to 1.5 miles of each other, which has never been done before on any official race courses. Actually, there’s only been races at Quicksilver park as far as I know. This route includes Quicksilver, Calero and Santa Teresa parks, all of which offer their own unique trail beauty and views. There are about 17 miles of Quicksilver, roughly 22 of Calero and 8 of Santa Teresa. The rest is broken up into short sections of road to get to/from adjacent parks.