Dolphin Watching and Ria Formosa Islands. Our longest trip at 5 hours, combining dolphin watching with a route around the Ria Formosa's barrier islands from Faro. 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 #dolphinwatching