Étretat: The Beach and the Falaise d'Amont by Claude Monet https://www.rawpixel.com/image/8961760/etretat-the-beach-and-the-falaise-damont-claude-monetFree Image from public domain licenseYoung men bathing and relaxing at a swimming school. Coloured aquatint, 1822. https://www.rawpixel.com/image/13997182/young-men-bathing-and-relaxing-swimming-school-coloured-aquatint-1822Free Image from public domain licenseMettray penal colony, Mettray, France: a swimming school. Lithograph by Tirpenne & Faivre after A. Thierry. https://www.rawpixel.com/image/13998326/image-plant-person-treeFree Image from public domain license