Just a few kilometres north of Taitung is Hsiao Yeliu, a coastal park known for its bizarre rock and coral formations, formed over thousands of years by wind and water erosion. The landscape is truly unearthly here, with rocks curving and twisting into all manner of fantastic shapes.
There's a good campground at the back of the park, with wooden tent platforms facing the sea. Fugang Harbour is also just around the corner from here, meaning you can walk to seafood restaurants as well as to the boat for Green Island.
If you're driving, Hsiao Yeliu is at the Km159 mark on Provincial Hwy 11, just after Fugang (富岡).