Hoyo Soplador is a natural phenomenon in San Andrés, Colombia. It is a small geyser where sea water spouts into the air (up to 20m at times) through a natural hole in the coral. The seawater accumulates between the coral rocks and pressure pushes it upwards, creating a strong blast of air and water. It is a popular spot for tourists looking for an exciting and unique experience. Entrance is free and there are several guides available to help visitors find the best spot to watch the show.