Accurate surveys are critical to understanding low-lying, flood prone locations. Surprisingly, the Galápagos Islands—one of the most scientifically studied sites in the world—lacks such data. Without a consistent and unified vertical datum, neither tides nor storm surge can be accurately referenced to the land. Our team used UAVs (drones) and GPS/ GNSS site survey equipment to record aerial survey information of Puerto Baquerizo Moreno’s shoreline and ravines. This information will be essential for modeling past and future storm surge, sea-level rise, and tsunami scenarios as it relates to the island’s urban growth and coastal areas.