Musée de la Mer, Maritime museum in Havre-Aubert, Canada.

Musée de la Mer is a maritime museum at Cap Gridley on the La Grave site in Havre-Aubert, on the Magdalen Islands. It holds the permanent exhibition "Laboureurs du Golfe" and temporary shows on various themes, with works by local artists, and offers genealogy documentation. Its mission is to safeguard the islands' maritime and cultural heritage through research, conservation, and education.

The museum was inaugurated on 8 August 1969 in the former parish hall of Havre-Aubert, with Quebec premier Jean-Jacques Bertrand present. In June 1972 the move of the Musée des Îles and its renaming as musée de la Mer were announced, along with a $200,000 grant from cultural affairs minister Claire Kirkland-Casgrain. The new building at cap Gridley on the La Grave site opened on 13 July 1974.

The museum's focus on maritime heritage reflects how deeply the sea shapes daily life and identity across the archipelago. Visitors experience how fishing traditions, boat building, and seafaring remain central to how islanders understand themselves and their home.

The museum stands at Cap Gridley on the La Grave site in Havre-Aubert, where the building opened in 1974. The suspended sperm whale skeleton hangs in the hall, so look up on arrival. The separate Aquarium des Îles, inaugurated on 4 July 1987, became an independent entity in 2017, so check which site you are visiting.

In May 2008 a sperm whale stranded on Plage du Nord near Pointe-aux-Loups. Claude Bourque, Pierre-Henry Fontaine, Paul Grégoire and about twenty volunteers spent three days butchering the carcass; the 215 bones were then cleaned, numbered and reassembled, and since December 2014 the skeleton has hung in the museum's hall.