have you tried shearwater or longleat, shearwater is the biggest at about 27 acres but you have to get through the small carp and bream. longleat has 3 lakes bottom lake has smaller carp more of a match lake, middle has carp to i think 20ish. top lake i was once told had carp to 38lb. but not sure if this is correct. all the lakes are about 25 miles from bath and night fishing is allowed on them (shearwater road side only) but give them a ring as they have changed the close season times. Nick Robbins 01985844496) take the A36 from bath to warminster. and you should start picking up the longleat signs. or if going to shearwater keep on the A36 and pick up the blanford road. turn right about 1 mile down sign posted shearwater. i live in trowbridge and these are about the biggest lakes around this area. if you need any larger waters or fish then you might have to travel further to south cerny or oxford. but if you do find anything let me know!.