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. To the east there is the
Alajuela Province, and to the southeast is the
Puntarenas Province. It is the most sparsely populated of all the provinces of Costa Rica. The province covers an area of and as of 2010, had a population of 354,154.