Get a dose of vitamin D at Plage de Port lÉpine. Once you've topped up your tan, stick around and watch the sky change color as the sun fades away.
You'll find this stretch of coastline in Brittany. Once you've done everything you can at Plage de Port l'Épine, have a look at nearby Perros-Guirec Beach, Sentier des Douaniers, and Ploumanac'h Lighthouse.