The Environment Agency (EA) is the Navigation Authority for Anglian Waterways which is made up of the rivers Ancholme, Black Sluice, Great Ouse, Nene, Stour, Welland and Glen. To be able to navigate these waterways or to take up one of the EA's moorings, you will need to be registered with the EA or hold a Canal and River Trust (CRT) Gold Licence. 

Access to the locks on these waterways require a navigation key which can be ordered when completing your registration, or alternatively they can be purchased from official agents or River Inspectors.  Proof of registration will be required.