Hit Café de las Sonrisas for breakfast, then check out the Isla Zapatera statuary and exhibits on pre-Columbian people at the Convento y Museo San Francisco. Grab some lunch at Bocadillos Tapas Kitchen & Bar and spend the afternoon wandering the downtown streets, having a look at Iglesia de Xalteva and Mi Museo before climbing the bell tower at Iglesia La Merced at sunset. Relax in the nearby Parque Central, great for people watching. From there, head down Granada’s bustling bar strip, Calle La Calzada, for drinks and dinner.
On day two, grab a coffee and breakfast at Cafe del Arte, then take a morning shuttle to the Laguna de Apoyo to enjoy a half day relaxing and swimming in a volcanic crater. Coming back in the afternoon, peek inside the stately Casa de los Leones to see if there are any interesting exhibitions on, and then dine in style at Miss Dell's Kitchen or Espressonista.
On day three, get out of town. Book a tour (or DIY) to hike on Volcán Mombacho or go further afield to the artisan villages around Masaya – the Pueblos Blancos, and stay overnight on one of the islands that make up the Isletas de Granada.