Parc naturel régional d'Armorique

Crozon (French pronunciation: [kʁɔzɔ̃], [kʁozɔ̃]; Breton: Kraozon, [ˈkrɔːzõn], locally [ˈkraõn]) is a commune in the department of Finistère and the administrative region of Brittany, northwestern France. As well as the town of Crozon, the village of Morgat is part of the commune.Crozon is located on the Crozon peninsula on the west coast of Finistère. It is bordered by the communes of Camaret-sur-Mer to the west, Roscanvel to the northwest, Lanvéoc to the north, Landévennec to the north-east and Telgruc-sur-Mer to the east. Crozon is the chef-lieu of the arrondissement of Châteaulin. Louis Jouvet, a French actor, was born in Crozon in 1887. Crozon harbours Île Longue, the base of the French strategic nuclear submarines.

The canton of Crozon is an administrative division of the Finistère department, northwestern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Crozon.It consists of the following communes:

Lanvéoc (French pronunciation: [lɑ̃veɔk]; Breton: Lañveog) is a commune in the Finistère department of Brittany in north-western France. The École Navale, the French naval academy, is located here.

The Naval Academy Research Institute (IRENav) is a multidisciplinary research and scientific training center under the institutional umbrella of the École navale and the École Nationale Supérieure d'Arts et Métiers. Created in 2000, IRENav is labeled (EA3634) within the framework of the laboratories of the École Nationale Supérieure d'Arts et Métiers and evaluated by the HCERES (Haut Conseil de l’évaluation de la recherche et de l’enseignement supérieur). It is also a member of the Institut Carnot Arts, a major research network that drives industrial innovation at the national level. IRENAV develops maritime and naval research activities in the fields of mechanical engineering, energy conversion and maritime information systems and underwater acoustics. IRENav is the essential support for the scientific training of Naval Engineering student cadets in the fields of Mechanics, Energy, Underwater Acoustics, Signal Processing, Computer Science and Information Systems. It is made up of about 65 research and teaching members of staff, including 25 academics and post-doctoral researchers, about 25 PhD students and 15 technical and administrative support. The institute's activities are intended to be dual, addressing both military and civilian research problems in the context of the ship of the future. Research activities are oriented towards mechanics and energy from a hydrodynamic and electrotechnical point of view, observation of the marine environment using underwater acoustic techniques (ASM) and Geographic Information Systems (GIS). The research is conducted by two groups.

The École navale is the French naval academy, in charge of the education of the officers of the French Navy. They are educated at the academy for responsibilities onboard surface ships and submarines, in French Naval Aviation, with the fusiliers marins and commandos, and on the general staff. The École navale and its research institute (IRENAV) are in Lanvéoc-Poulmic, south of the roadstead of Brest.

Île Longue (French for "Long Island") is a peninsula of the roadstead of Brest in the department of Finistère in the Brittany region. It is the base of the SNLE, the French ballistic missile submarines, and as such one of the most secretive and heavily defended places in France.

The Île Ronde (literally Round Island) is a French islet 400 metres (0.25 mi) to the south west of Pointe de l’Armorique, in the roadstead of Brest, within the territory of the commune of Plougastel-Daoulas. Its highest point is 24 m. Facing Île Ronde, on the pointe de l’Armorique, is the fort de la pointe de l’Armorique, built in 1775 for the defense of Brest.

The roadstead of Brest (French: rade de Brest, French pronunciation: ​[ʁad də bʁɛst]; Breton: Lenn-vor Brest) is a roadstead or bay located in the Finistère department in Brittany in northwestern France. The surface area is about 180 km² (70 sq mi). The port of Brest and one of the two French naval bases, Brest Arsenal, are located on its northern edge. It is linked to the Atlantic Ocean (called the Iroise Sea at this point) by the Goulet de Brest, a strait about 1.8 km wide. Three main rivers drain into the roadstead: the Penfeld (the town of Brest and the first buildings of the naval base were built on its banks), the Élorn (or river of Landerneau) and the Aulne (or river of Châteaulin).

Île des Morts (Island of the Dead) is a 7-hectare island in the Bay of Roscanvel, to the south-west of the roadstead of Brest, between the Quélern peninsula and Île Longue. It is 26m above sea level at its highest point.

Roscanvel (French pronunciation: ​[ʁɔskɑ̃vɛl]; Breton: Roskañvel) is a commune in the Finistère department of Brittany in north-western France.

Quélern is a hamlet in Roscanvel, in the department of Finistère (Brittany), in western France.

The fort Quélern or réduit de Quélern is a castle and prison in the commune of Roscanvel in France.