The Guepard (cheetah) is a dinghy designed around fifty years ago by Étienne Riguidel and native to the Gulf of Morbihan.
Single chine with a heavy center plate, the Guepard is traditionally built wood on frame, it's relatively heavy displacement helping to make it a safe and suitable boat for the strong tidal waters.
Guepards are a colorful fleet, often setting a white mainsail with coloured jib to match the hull. The yellow boat above looked great, with only the mast varnished, contrasting colours for deck and waterline make her a stand out boat.
Some colour schemes were more subtle, some less so, great fun and they look like great boats to sail, lots of pictures on the association web site.