I visited Boseong Green Tea Farm in South Korea at the end of May, 2013. The trip took 1 hour and a half from Yeosu, a city on the southern coast of South Korea. If you are leaving from Seoul (by the way, pronounced as soul), then it would probably take around 4 hours.
Anyways, I had hired an english-speaking driver to take me there, who also acted as my guide. 🙂 Because of its speculator scenery, a popular South Korean tv series is shot there. I bought a ticket and went to take an amazing walk between the green tea plants. The weather was nice. There were two path. I took the hardest one and most rewarding in terms of scenery. You would have to climb up the stairs. It had a speculator view of the green tea fields and the fog. I was thankful that I was wearing my nike shoes because the stairs were sometimes steep and you would have to be careful. The path included climbing up 800 meters worth of stairs. I think the total path was between 1.6-2km long. It was very tiring but definitely worth it. At times I was so tired, I couldn’t climb up anymore and there weren’t any place to rest. The stairs were so steep that I couldn’t stand still on them so I would end up hugging a tree to support myself. 😆