Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Santander (72% of total searches to Cantabria Coast). The next most popular destinations are Mogro (10%) and Cubas (10%). Searches for hotels in Castro-Urdiales (8%) are also popular.
KAYAK users have found double rooms in Cantabria Coast for as cheap as C$ 36 (Santander) in the last 3 days. The average price is C$ 197.