Climb to the top of Seongsan Ilchulbong Peak, a UNESCO World Natural Heritage Site, and enjoy stunning panoramic views of the sunrise. After descending, walk along the coast to Seopjikoji, a beautiful shore with carved rocks and a lighthouse.
Take the ferry to Udo Island, where you can rent a bike or a traditional Korean horse-drawn carriage to explore the island's beaches, lighthouses, and colorful fishing villages.
Visit Manjanggul Cave, one of the longest lava-tube caves in the world, and marvel at its unique rock formations and lava stalactites. Then head to Jeju Folk Village Museum, an open-air museum that showcases the island's traditional architecture, lifestyle, and culture.
Explore Hallim Park, a sprawling botanical garden with caves, waterfalls, and Jeju stone statues. Afterward, relax on Hyeopjae Beach, a white sandy beach with clear turquoise waters and picturesque views of Biyangdo Island.
Visit Osulloc Tea Museum, a peaceful place to learn about Korean tea culture, taste organic tea, and shop for souvenirs. Then, experience Jeju Loveland, a quirky and erotic sculpture park that showcases the island's uninhibited and playful side.
If you have more time, you can also visit Jungmun Beach, Seogwipo City, and Mt. Hallasan National Park. If you have less time, you can skip Udo Island, Jeju Loveland, or both. Make sure to check the weather forecast and dress comfortably for outdoor activities. Bring sunscreen, water, and snacks, as some places may not have food or drink vendors. Lastly, rent a car or hire a tour guide for convenient transportation and local insights.