Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Foz do Iguaçu (81% of total searches to Paraná). The next most popular destinations are Curitiba (10%) and Londrina (6%). Searches for hotels in São José dos Pinhais (3%) are also popular.
KAYAK users have found double rooms in Paraná for as cheap as C$ 8 (Foz do Iguaçu) in the last 3 days. The average price is C$ 147.