A detailed account of the wildlife of the Arnside and Silverdale AONB is provided by John Wilson and Peter Lennon.

Writing in The Local Historian, Caunce describes it as "an unwitting pioneer of eco-tourism", with visitors attracted by the scenery and in particular Arnside Knott.

[6] Arnside is part of the Morecambe and Lunesdale parliamentary constituency, for which Lizzi Collinge has been the MP since 2024, representing the Labour Party.

The parish is bordered by the Kent estuary to the north, Morecambe Bay to the west, Silverdale to the south (along the historic Westmorland / Lancashire county boundary), and Beetham to the east ( the eastern boundary following the railway at its north and south, and extending a little further east).

The sequence of warnings is:- The cause of this fast tide is a combination of the large area of Morecambe Bay, which narrows rapidly at Arnside, plus the second highest tidal range (at Barrow-in-Furness), which can be as much as 32 feet (9.8 m) on a spring tide nearest the spring and autumn equinox: these typically give rise to a tidal bore, which may be as high as 12 inches (30 cm), and is often used by canoeists.