Now let me think here !! Rich is the river that runs down through Whitby called the Esk ?? ive fished the said river but iam afraid only by rod and line!! If what i was told is right its the only river in the district that takes the Salmon/Trout,,, disregarding i may add the wee burns that run into the sea!!! Ive fond memorys of the area and no doubt i will pay that lovely part of the Country a visit again in the near future ,,,, REGARDS..