The Coque offers a comprehensive range of swimming and aquatic activities at the Centre Aquatique. Facilities include a 50-metre Olympic pool with eight lanes, a 25-metre pool, a diving tower with platforms from 1 m to 10 m, as well as a sports and health pool used for swimming and aquafitness classes. Additional facilities include a diving pool and an adjacent fitness area. The pools are used by schools, sports federations, and recreational swimmers.

For national and international competitions, the venue provides 650 spectator seats on the stands above the pools. The Coque also operates a separate 50-metre training pool, used exclusively by federations and international teams for training camps.

The Centre de Détente constitutes the adjacent wellness and relaxation area. It includes several saunas, a hammam, a snow cabin, warm and cold-water pools, themed showers, a whirlpool, a tepidarium, and dedicated relaxation areas. Outdoors, guests have access to a wood-fired sauna, warm and cold pools, and additional relaxation zones. A wide range of massage treatments is also available. The sauna area is textile-free; bathrobes are required in passageways and relaxation areas.