The Pyramides at Port-Coton, Rough Sea is a series of six paintings produced by Claude Monet in 1886. They all show the rocky Atlantic coast of Belle-Île-en-Mer, visited and painted in the plein air by the artist between 12 September and 25 October that year.

Image	Title	Museum	City	Dimensions (cm)	Year	Catalogue number[1]
	The Pyramides at Port-Coton, Rough Sea	Pushkin Museum[2]	Moscow	65 × 81	1886	W1084
	The Pyramides at Port-Coton	Museo de Arte Contemporáneo de Caracas	Caracas	65.5 × 81.5	1886	W1085
	The Rocks at Belle-Île	Ny Carlsberg Glyptotek[3]	Copenhagen	65 × 81	1886	W1086
	The Pyramides at Port-Coton, Rainy Weather	Rau Foundation for UNICEF, Arp Museum – Rolandseck railway station[4]	Rolandseck, near Remagen	65.5 × 65.5	1886	W1087
	The Pyramides at Port-Coton, Sun Effect	Private collection		65 × 65	1886	W1088
	The Rocks at Belle-Île	Private collection			1886	W1089

• 
  Landscape at Port-Goulphar (1886), Art Institute of Chicago.
• 
  Tempest off the Coast of Belle-Île (1886), Musée d'Orsay.
• 
  Rocks at Belle-Île, Port-Domois (1886), Cincinnati Art Museum
• 
  Grotto at Port-Domois (1886), Museum of Modern Art, Ibaraki
• 
  Belle-Île, Effect of Rain (1886), Bridgestone Museum of Art
• 
  Tempest on the Coasts of Belle-Île (1886), Galerie Kornfeld
• 
  Port-Goulphar, Belle-Île (1887), Art Gallery of New South Wales

• List of paintings by Claude Monet