Automatic-teller machines are ubiquitous in Lima, and several are in the arrivals hall of the airport. All accept cards on both the Plus and Cirrus networks, and most offer the choice of withdrawing either Paruvian soles or U.S. dollars.
On Avenida José Pardo, the main commercial street in Miraflores, there's a bank on nearly every block. When exchanging money, you will usually be asked to show your passport.
Banco Continental (Av. Grau and Unión, Barranco.) Banco de Credito (Av. José Larco and Schell, Miraflores.) Banco Santander (Carabaya and Ucayali, El Centro). Interbank (Av. José Larco and Schell, Miraflores.)