Cobac Parc, Amusement park in Mesnil-Roc'h, France.

Cobac Parc is a theme park in Mesnil-Roc'h, Ille-et-Vilaine, covering 12 hectares with about thirty attractions, including the Soquet-built Corsaire roller coaster opened in 2007: 300 m of track, 10 m high, 40 km/h. Since 2011 it also holds Aqua'Fun Park, a 2-hectare water area with slides up to 12 m high and 140 m long.

Cobac Parc opened in 1975 at Mesnil-Roc'h (Lanhélin) in Ille-et-Vilaine. Jean-Christophe and Gaëlle Charbonnel took over its management in 2004, and the park's first roller coaster, Corsaire by Soquet, opened on 28 April 2007. In 2010 it added Le Surcouf and La Tour de Gué for 640,000 euros; the Saint-Malo aquarium bought the park in 2012, joining the Looping group, and it marked its 40th anniversary in 2015.

Several rides carry names drawn from local legend and the sea: the swinging boat Surcouf, the observation tower Tour de Gué, the drop tower Excalibur, the teacups Le Graal and the menhir-themed Promenade des Menhirs. The Corsaire roller coaster, built by Soquet, opened on 28 April 2007 and runs 300 m of track at up to 40 km/h.

The park is located about 30 minutes from both Rennes and Saint-Malo and operates seasonally from April through September. Arriving early and wearing comfortable shoes are helpful, as the grounds are large and require walking between attractions.

Aqua'Fun Park, opened in 2011, covers 2 hectares and cost two million euros, adding about ten water attractions. Its slides start at a height of 12 metres and run for 140 metres, and the Dutch builder Van Egdom added the Super Crater bowl slide in 2012. The Aqua Kids Park followed in 2014 at a cost of 100,000 euros.