Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Lloret de Mar (45% of total searches to Costa del Maresme). The next most popular destinations are Santa Susanna (27%) and Mataró (18%). Searches for hotels in Blanes (9%) are also popular.
KAYAK users have found double rooms in Costa del Maresme for as cheap as $70 (Calella) in the last 3 days. The average price is $406.