El Salto del Calvo Waterfall is located in Hojancha, Guanacaste and has recently started to become very popular. Enough so that they even got a segment in The Voice of Guanacaste.
To reach this attractive site you travel 2 kilometers by horseback before reaching the impressive 350 meter twin falls, the highest in Central America.
The ride there takes you through various important town in Guanacaste such as Santa Cruz and Nicoya. You'll take in a lot of culture and nature on a trip like this.
Vargas Tours will provide you with a guide that can answer your questions and explain the area and its traditions.