The Naval Temple with surrounding retaining wall

The Naval Temple is a neo-classical square stone structure built in 1800, featuring two back-to-back porticos with unfluted and unbased Doric columns. The plain side walls and columns support a moulded cornice and a large plinth. Above, a decreasing roof made of stone slates supports an arch flanked by anchors, which carries a replica statue of Britannia.

Around the sides of the plinth are plaques that commemorate sixteen admirals and their victories in chronological order: Hawke (1759), Rodney (1782), Gell (1793), Hood (1793), Howe (1794), Cornwallis (1795), Bridport (1795), Duncan (1797), Warren (1798), Keith (1799), Mitchell (1799), Parker (1801, existing as of the 1974 resurvey), Boscawen (1759), Vincent (1797), Thompson (1797), and Nelson (1798, replaced in 1987). The plaques are colored red, white, or blue, corresponding to the admiral's squadron.

The entablatures of the porticos bear the inscriptions 'BRITAIN'S GLORY' on the west side and 'GLORIOUS VICTORY' on the east side. There are also two oval inscribed marble panels. One panel explains the monument's purpose, stating that it was erected on August 1st, 1800, to honor the admirals who distinguished themselves in glorious victories for England during the last and present wars and is dedicated to Her Grace the Duchess of Beaufort, daughter of Admiral Boscawen. The second panel refers to two lost paintings that have since been restored: 'The Standard of Great-Britain waving triumphant over the fallen and captive of France, Spain and Holland' related to the Seven Years War, and 'The Glorious and Ever Memorable Battle of the Nile'.

The temple is encircled by a roughly circular retaining wall made of rubblestone, which has a single opening into the temple enclosure. This wall suggests that it once provided a terrace for enjoying a remarkable view, although tree growth has since obstructed this sight.