A 16.5 mile run from the Seymour Centre via Holland Park to Hammersmith from where it follows the river all tghe way back to Westminster, returning via the usual route to finish back at the Seymour Centre.
The route starts and finishes at the Seymour Leisure Centre, where Serpentine members can use the shower and changing facilities. The Seymour Leisure Centre is on Seymour Place, W1H 5TH.
