Plenty of varied scenery and terrain to keep you occupied. When I was looking to really get some good form, this was one of my favourite training loops (without the off road bit). . Loops are rides where the start and finish are at the same point, this lets you do multiple laps without getting weird distances in Strava etc. To ride multiple laps of a ride non-stop, go to Settings then select Laps from the Ride Modes menu.