Three kilometers beyond the El Guafe trailhead is a tiny fishing community with skiffs bobbing offshore and sinewy men gutting their catch on the golden beach. The 33m-tall Vargas lighthouse here (erected 1871) now belongs to the Cuban military. In its shadow lies Restaurante el Cabo , source of the cheapest fresh seafood you'll find anywhere.
There's good swimming and shore snorkeling east of the lighthouse; bring your own gear as there are no facilities.