Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is San Marino (50% of total searches to San Marino). The next most popular destinations are Serravalle (38%) and Domagnano (13%).
Based on KAYAK hotel searches, the most popular region to stay in San Marino is San Marino. Serravalle and Domagnano are also very popular.
KAYAK users have found double rooms in San Marino for as cheap as €44 (Domagnano) in the last 3 days. The average price is €109.