A museum of local history ranging from pre-historic and Roman artifacts to the present day.  The museum is run mainly by enthusiastic volunteers and is located in a new, state-of-the-art facility.
The museum is organised around a chronological history of the town, including a history of the River Arun, blacksmithing, clock-making, and horse-racing.  Many items are on open display (not in cases). 

The museum has published two leaflets of interest to visitors, detailing self-guided walks, one in the heart of historic Arundel, the other exploring the outskirts of the town. The museum also organizes guided tours during the spring and summer seasons, including themes such as Medieval Arundel, The Port of Arundel, and Ghosts, Murders and Mysteries of Old Arundel.

Facilities include a shop, a few refreshments, and tourist information.  For families, there is a Museum Detective challenge, as well as family-friendly events.