Avalon Marshes Visitor Centre
Halfway between Westhay and Shapwick, the Avalon Marshes Centre is the main visitor point for all of the nature reserves in the area. It has offices for all of the organizations that run the reserves, namely Natural England, the RSPB, Somerset Wildlife Trust, and The Hawk and Owl Trust, and the Environment Agency.
The site also has some historical reconstructions which are coordinated by the South West Heritage Trust. They are in the process of reconstructing a Roman Villa and a Saxon Hall. Check up on the progress using the links below.
There is an art gallery on site run by a cooperative called Somerset Crafts where you can find a range of interesting displays by local artists. Inside are also many leaflets and maps of the reserves and the local interests.
Its an essential starting point to become familiarized with the area. See below for their extensive website.
The site used to be known as the Peat Moors Centre but this closed and the Avalon Marshes Centre replaced it. In spite of what Wikipedia may claim, the site is very much up and running. In fact from Spring 2017 through to 2018 the site is getting a major upgrade so some building works are in progress.
A gallery of images related to the Avalon Marshes Visitor Centre can be viewed here.