For absolute peace and quiet, the best thing you can do is to take a day-trip out of Zihuatanejo to Barra de Potosí, a tiny community situated at the southern end of the expansive, postcard-perfect, golden sandy beaches of Playa Larga and Playa Blanca, which curve steeply round the bay and keep going as far as the eye can see. There are plenty of enramadas (beach restaurants) here that sell delicious seafood for half the price of the restaurants in town, and boat trips into the Laguna de Potosí, a large mangrove estuary teeming with birdlife.