Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Lloret de Mar (69% of total searches to Costa del Maresme). The next most popular destinations are Badalona (11%) and Calella (11%). Searches for hotels in Santa Susanna (9%) are also popular.
KAYAK users have found double rooms in Costa del Maresme for as cheap as $12 (Lloret de Mar) in the last 3 days. The average price is $215.