Given a week

I just found out that I get 4 weeks vacation this year! Nice!

Any suggestions on where to go? I'd probably be flyin' solo because my wife is pretty wrapped up in her new job, and won't be able to get the time off. I'm thinking either somewhere I can go and maybe meet some people to spend a week with, preferrably out of the country, or maybe one of those crazy treks or adventure trips.