Set in a late-19th-century pleasure garden, the museum and gallery houses collections of geology, natural history, archaeology, social history and fine art.
The archaeological highlights include the Lukis Collection. The art collection is primarily of works by Guernsey artists or of local subjects. Notable local artists include Peter Le Lievre, Paul Naftel, William Toplis and William Caparne. There is a large collection of local portraits, marine oils and port pictures and an extensive photographic collection.