If want to top up your tan, you might want to head out to Saliara Beach, located 6.9 mi (11.2 km) from central Thasos. Catch the sunset by the shore at Pórto Vathý, just a short walk away.
You can spend an afternoon browsing the exhibits at Museaum Polygnotou Vagi during your travels in Potamia. While you're in the area, stroll along the beaches.