Benagil Cave Charter. Private crewed yacht charter from Vilamoura Marina to the Benagil sea caves, choosing from an eight-yacht fleet ranging from 47ft to 80ft. 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