Hoyo Azul is a natural sinkhole with a vivid blue color. It is approximately 14 meters (45 feet) deep and is available for swimming. First you take a 15min hike through a lush garden, and make your way to Hoyo Azul. There are many different ways to be able to see this natural, cool spring. You can either pay for an entrance fee to Scape Park (around $150 per person) - which offers a variety of different attractions and activities or you can book your own tour via different websites (around $129 per person).