Udo was the best place in my jeju visit. although the weather was very hot, but its windy too. My hat even blow off by the wind. The sea and sand were just too beautiful. its really a relaxing place when seeing the green grasses dancing all over in front of you. Besides, the zha jiang mian was really tasted good. it costed 8000won. the peanut icecream was famous too, 3000won. We sent a whole morning there. In the island, we can take bus, rent bicycle or scooter.