Geograph - photograph every grid square

National Route 4 of the National Cycle Network is a long distance route between London and Fishguard via Reading, Bath, Bristol, Newport, Swansea, Carmarthen, Tenby, Haverfordwest and St. Davids. The route is fully open and signed though the route has not been finalised in central London between Greenwich and Putney Bridge.
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The Kennet and Avon is made up of two river navigations and a linking stretch of canal. It runs from Hanham Lock near Bristol to the River Thames at Reading, over 100 miles long with more than 100 locks, some magnificent engineering and crossing some of the most beautiful scenery in southern England. It was only reopened in 1990 after decades of dereliction.