If your trip to Arce is all booked but your travel itinerary is looking a little empty, we can give you a few hints and tips.Nothing tops discovering new places. While you're in the area, Pastena Caves and Caves of Falvaterra and Rio Obaco Natural Monument should be among them. If you still have plenty of stamina and space on that travel schedule, Castello dei Conti d'Aquino is also whispering your name.