The Lime Kiln Lighhouse was established in 1914. It sits on the East side of San Juan Island in what is currently Lime Kiln State Park. The light was one of the last major lights in the USA to be automated (1962). The building today houses a research station for monitoring whale movement in the area. The area is a good place for whale watching as there are three resident Orca pods (J, K, and L pods) that frequent the San Juan Islands.