This is the idea that pipkins gave me; check out cycle routes in Bristol.....
www.cycle-route.com
first one I look at - Bristol to Portishead Loop Cycle Route
Cycle Steps
This is a road route, that starts in the
Clifton area of Bristol. It initially takes a direct leg over the suspension bridge, on the B3129, and along the undulating A369 to the
M5. It then continues to follow the A369 into Portishead. The return leg takes you mainly on
country lanes back over the M5, via a footbridge and Station Road into Portbury (which can't be displayed on this map. The map therefore takes the A369 and the High Street into Portbury). From Portbury you then follow undulating country lanes, through
Lower Failand and Ashton Court Estate, back over the suspension bridge, on the B3129, into Clifton.
It goes down Longwood Lane!!
http://www.cycle-route.com/routes/Bristol_to_Portishead_Loop-Cycle-Route-5056.html
Keen cyclists new to the area, maybe?
Looking at other routes now