Benagil Caves Kayak Tour. Our core small-group kayak tour to the Benagil Caves, built up 621 reviews at a 5.0 average. 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