Also, cultural fanatics can check out the fairly awesome Jeju Haenyeo Museum (map) a few Group of ladies on Jeju Island who dive in The ocean to gather shellfish! Jeju is definately really worth a take a look at. I only stayed for 2 nights which was far too small. https://jaidenr642p.jiliblog.com/88980404/the-single-best-strategy-to-use-for-jeju-hotels-on-the-beach