Kent and Sussex route 297. Tunbridge Wells to Ashford via Pembury, Horsmonden, Cranbrook, Tenterden and Woodchurch. Absolutely outstanding ride through some of the finest countryside in Southern England, and serving some of the prettiest towns and villages. Six through journeys per day Mon-Sat, taking about 2 hours 20 mins. Arriva website for timetable. www.arriva.co.uk

UPDATE: The 297 Tunbridge Wells to Ashford is now operated by Nu-Venture buses (Mon-Fri) and Kent Top Travel (Sats). The part between Tenterden an Ashford is called route 295 - but I believe the buses go right through. Timetables are on the 'Traveline' website.