Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Tamarindo (62% of total searches to Guanacaste). The next most popular destinations are Liberia (24%) and Playa Hermosa (8%). Searches for hotels in Culebra (6%) are also popular.
KAYAK users have found double rooms in Guanacaste for as cheap as C$ 19 (Liberia) in the last 3 days. The average price is C$ 385.