Benagil Caves and Coastline Boat Tour. A boat tour to the Benagil Caves and along the Albufeira coastline, departing Marina de Albufeira. Every operator on the Circle is booked direct. No commission, no middleman, no booking fee stacked on top: you deal directly with the people who run it. Reserva direta com quem opera, sem comissões e sem intermediários. #algarve #algarvecircle #portugal #thingstodoalgarve #benagilcavetours