San Cristobal Island
There are many snorkeling and diving spots on the island, so you can enjoy a couple of days at Las Tijeretas, León Dormido (aka Kicker Rock which was formed by volcanic activity), and/or Ochoa Beach.
Santa Cruz Island
There’s El Chato Ranch, where massive giant tortoises roam freely in their natural habitat. Kids love wandering the grounds and see turtles of all sizes!
Santa Fe Island
You will have to book a tour to visit the island, and that will typically include a day of hiking, snorkeling, and lunch. Families can observe the endemic rice rat, sea lion colonies, and marine iguana