A small Victorian artillery fort east of the main Southsea seafront, now a public rose garden. The walls and a few of the casemates survive; the gun emplacements have been turned into beds of roses and herbaceous plants, and the grass parade ground is a pleasant lawn dotted with benches.
It is one of the quieter spots in Southsea and a good place to picnic. The adjacent Canoe Lake — a saltwater lake fed by the sea — has paddle boats in summer and a model boating club on weekends.