Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is San Sebastian (88% of total searches to Costa Guipúzcoa). The next most popular destinations are Bayonne (9%) and Irun (2%). Searches for hotels in Hondarribia (1%) are also popular.
KAYAK users have found double rooms in Costa Guipúzcoa for as cheap as C$ 34 (Hendaye) in the last 3 days. The average price is C$ 403.