Guanacaste
Guanacaste, on Costa Rica's north Pacific coast, is the country's golf region: Arnold Palmer's Ocean Course on the Papagayo peninsula, Robert Trent Jones II's Reserva Conchal and Mike Young's Hacienda Pinilla run between tropical dry forest and ocean. The first two are reserved for guests of certain hotels, so choosing where to stay matters. The best season is the dry one, from December to April.
