1. Gwakji Beach

Gwakji Beach is a beautiful white sand beach located on the west coast of Jeju Island. It's a popular spot for locals, who come to enjoy the clear blue waters and stunning views of the surrounding cliffs.

2. Mysterious Road
Mysterious Road is a unique optical illusion road located in Jeju Island, where objects appear to roll uphill instead of downhill. It's a popular spot for locals and tourists alike, who come to experience this strange phenomenon.

3. Hallim Park
Hallim Park is a beautiful botanical garden located on the western coast of Jeju Island. It's a popular spot for locals, who come to enjoy the colorful flowers, unique rock formations, and stunning ocean views.

4. Seongsan Ilchulbong Peak
Seongsan Ilchulbong Peak is a UNESCO World Heritage Site located on the eastern coast of Jeju Island. It's a popular spot for locals, who come to hike to the top and enjoy the stunning views of the surrounding landscape.

5. Jeju Olle Trail
Jeju Olle Trail is a network of hiking trails that covers more than 400 kilometers of Jeju Island's coastline. It's a popular spot for locals, who come to hike, bike, or walk along the trails and enjoy the island's natural beauty.

6. Jeju Haenyeo Museum
Jeju Haenyeo Museum is a museum dedicated to the island's female divers, who harvest seafood from the ocean without using scuba gear. It's a popular spot for locals, who come to learn about the island's unique culture and history.

7. Sanbangsan Mountain
Sanbangsan Mountain is a beautiful mountain located on the southern coast of Jeju Island. It's a popular spot for locals, who come to hike to the top and enjoy the stunning views of the ocean and countryside.

8. Jeju Traditional Five-Day Market
Jeju Traditional Five-Day Market is a local market located in Jeju City, where locals come to buy fresh produce, seafood, and handmade crafts. It's a great spot to experience the island's unique culture and sample some delicious local food.

9. Jeju Folklore and Natural History Museum
Jeju Folklore and Natural History Museum is a museum dedicated to the island's natural history and folklore. It's a popular spot for locals, who come to learn about the island's unique geology, flora, and fauna.

10.Udo Island 

Udo Island is a small island located off the eastern coast of Jeju Island. It's a popular spot for locals, who come to enjoy the island's beautiful beaches, seafood, and scenery.

In conclusion, Jeju Island is full of hidden gems that locals love to visit. From beautiful beaches and mountains to museums and markets, there's something for everyone to enjoy on this stunning island. So, make sure to check out these 10 best places where locals love to go in Jeju Island on your next trip to South Korea.