heres i few web sites that may help in your quest for places to fish around bristol hope this helps
http://www.alcoveangling.co.uk/
http://www.woodlands-golf.com/woodlands_fishing_lake-9.html
http://www.plantationlakes.co.uk/home.htm
http://www.waterscape.com/things-to-do/fishing/fisheries/20207/tan-house-farm-lake
http://www.foggi.co.uk/angling/bathampton/