Granada Islets Tour – One of the most popular tours in Granada is the islets. These are a group of 365 small islands scattered about the Asese peninsula. The islets are of volcanic origin; they were formed when the Mombacho volcano blew much of its cone into the lake thousands of years ago, thereby creating the archipelago. Most of the islets are covered with vegetation. Beautiful scenery with a lot of birdlife and astonishing views over volcanoes (Ometepe Island & Mombacho) and Lake Nicaragua. Early in the morning or at sunset is the best time to visit the islets, where you can see a lot of birds and a colorful sky.