
Guanacaste is Costa Rica's driest and sunniest province — and paradoxically one of its most biodiverse. Stretching from the Nicaraguan border south to the Nicoya Peninsula, the region packs an astonishing variety of ecosystems into a compact geography: dry tropical forest, volcanic highlands, river canyons, cloud forest fringes, and Pacific coastline. The result is an equally diverse menu of tours that rewards every type of traveler. This guide covers everything you need to know to choose and plan your tours in Guanacaste in 2025.
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