Matanzas is divided into three distinct sections by the Yumurí and San Juan rivers. All let out onto the broad bay, Bahía de Matanzas. The northern section and the first you'll reach coming in on the Vía Blanca from Havana is Reparto Versalles. The central section, Reparto Matanzas, is where you'll find the city center and most of the local attractions. Heading south and out of town toward Varadero is Pueblo Nuevo.
The main post office is located at the corner on Calle 85 between Calles 288 and 290. There's an Etecsa center at Calles 28 and 83 (tel. 45/24-3123). There's a CADECA branch on Jovellanes and Milanés (tel. 45/25-3558).