Jungmun Beach seems to be a very popular place with foreigners and Koreans alike. I saw more (western) foreigners here than I did on any other part of the island. But I can see why. Beautiful views, world class hotels, a great beach where you can actually surf and a location very close to Seogwipo, the second largest city in Jeju.
As you make your way down to the beach, you may come across some of these guys. Harubang are protectors and gods of fertility on Jeju.
Now for the beach! Yup, it's a nice beach, with lots of waves!
There were quite a number of surfers in the water. I can't vouch for how good the surfing is, but by the number of people trying to surf it must mean it's good enough. I didn't see many people getting up on their boards though.