And the region has its own unique and delicious gastronomy. One of the city's great treasures is the spectacular Atlantic Botanical Garden, which was the first botanical garden in the north of Spain. The historic fishing village, Cimadevilla, is located on a peninsula that divides the port in half. And there's a great aquarium with both fresh and saltwater displays. The Campo Valds Roman Baths date back to the time of Augustus in the 1st century AD, and there are other reminders of the ancient Romans visible downtown. There's also plenty to discover in the beautiful, rural countryside of northern Spain, including the prehistoric cave paintings at Cantabria.