This will be about 12 miles on the North Downs, quite hilly, starting and finishing at Merstham.
To get there you can take the 405 bus leaving West Croydon at 9.00am, or from Fairfield Halls about 3mins later, taking 34 mins Merstham.
Or you can take the 9.42 train from East Croydon, calling at Purley 9.46, Coulsdon S. 9.51 and Merstham 9.56.
Bring a packed lunch, but there will be a refreshment stop at Reigate Hill, (tea & coffee, snacks) a pub stop and another chance for a break at Reigate Hill on return to Merstham.
Going home the 405 bus is every half hour and one train each hour.