The Faro Los Morrillos stands on white limestone cliffs that drop 200 feet straight into the Caribbean at the very tip of Puerto Rico's southwestern peninsula. Built in 1882, the 12-metre tower guided ships through the Mona Passage for over a century; today it is automated and partly abandoned, but the setting is extraordinary.
The walk out to the lighthouse crosses the salt flats and passes through the wildlife refuge, with excellent birding along the way. The cliffs at the base are dramatic, with sea caves and arches carved by the surf. On a clear day you can see as far as Hispaniola to the west. Allow a couple of hours for the round trip from the parking area. The road is rough; a high-clearance vehicle helps.