Hi,
I'm a 25/m high school teacher in Yongin (outside of Seoul) - thinking about hitting Jeju around the end of July/August for 2 weeks. It'd be a budget, backpacker-type trip doing stuff like paragliding, windsurfing, hiking Mount Halla, etc... I might just go alone, but wouldn't mind the company - most people I know either aren't into adventure like that or work at a hagwon, so don't get any holiday. Let me know if you're interested! My email is: philip@cotsford.org