Me and some mates are riding the South Downs Way (100+miles) In a day in a couple of weeks. We've been training hard for a few months and are now pretty fit. Point is, we don't want to lose the fitness once the race is done and are now looking for our next challenge. We're not keen on extreme downhill action and prefer the ups and downs of the Downs, decent climbs, stunning views, challenging (but not mental) terrain. We'd quite like a challenge (England based preferably) for around October / November. Any suggestions?