Help Im trying to find the location of Signal Crayfish in Cambridgeshire.?

Question

Does anyone know of rivers or reservoirs locally?

Answer 1

im nt quite sure what you are asking but throw some garlic powder in the water and when that hits the bottom take a piece of bacone on a string and pull  it up every five muinets

Answer 2

i'm not sure but many carp fishing lakes in the area are likely to have them