Guanacaste is a province of Costa Rica located in the northwestern part of the country, along the coast of the Pacific Ocean. it borders Nicaragua to the north. Guanacaste's capital is Liberia. Other important cities include Cañas and Nicoya. 

Guanacaste is popular for its beaches and biodiverse parkland. Its Santa Rosa National Park is home to rare dry tropical forest, surfing sites and some 250 bird species. It's spectacular beaches include Playa Blanca, with its calm waters, and Playa Hermosa, popular for diving and water sports.