Is Benagil cave in Portugal Has a Skylight and a Beach — and You Can Only Get There by Boat. The rugged coastline of Portugal’s southernmost area is defined by steep limestone cliffs and rock formation dotted by hidden beaches , It is located in Algarve which has some the best beaches for a luxury vacation. #asklttravelconnectionhowtogethere #bucketlist #timetotravel2022 #internationaltravel