Also, cultural fans can check out the very amazing Jeju Haenyeo Museum (map) a few Neighborhood of girls on Jeju Island who dive in the sea to collect shellfish! Jeju is definately worth a stop by. I only stayed for 2 evenings which was also shorter. Mt Halla is breathtaking, https://gregoryi420m.blogolize.com/about-jeju-hotels-on-the-beach-71048677