A weekend in Granada
A practical two-day shape: the Isletas, Mombacho or Apoyo, and an evening on the Calzada.
Use one morning on the water and one on the volcano. The Isletas boat is the easy first hour, before the heat. Mombacho needs the other morning, with real shoes. If the forest is socked in, Laguna de Apoyo is the spare plan: a swim, not a summit. Evenings belong on the Calzada. Eat, then see if anyone is actually playing. Granada is walkable at night in the center. It is not walkable out to Apoyo. Sleep in town unless the lake is the whole point of the trip.