Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Angra dos Reis (69% of total searches to Serra da Bocaina). The next most popular destinations are Paraty (30%) and Cunha (0%). Searches for hotels in Mambucaba (0%) are also popular.
KAYAK users have found double rooms in Serra da Bocaina for as cheap as $26 (Angra dos Reis) in the last 3 days. The average price is $159.