As the Dominican Republic’s oldest city, you might think Puerto Plata excursions all revolve around history—but that couldn’t be further from the truth. While plenty of options delve into the past at the 16th-century fortress, many showcase the lush natural landscapes of the island. Tackle rugged terrain on an ATV adventure, go horseback riding on trails leading to waterfalls, feel your adrenaline levels soar during ziplines, and then cool off during snorkeling trips and sunset catamaran cruises.