Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Angra dos Reis (86% of total searches to Ilha Grande). The next most popular destinations are Vila do Abraao (14%) and Praia de Aracatiba (1%). Searches for hotels in Matariz (0%) are also popular.
KAYAK users have found double rooms in Ilha Grande for as cheap as $116 (Praia de Aracatiba) in the last 3 days. The average price is $161.