Pretty much what the title says. I've been backpacking quite a lot throughout the last few years and I'm at the point where I just want to go on a real adventure. I just feel like doing something totally fucked up.
I've been thinking about going down to Ecuador or Peru to try Ayahuasca in the Amazon jungle, going to Ethiopia to hike up the Erta Ale volcano, or going to Papua New Guinea and doing the Kokoda Track.

Does anyone have any other ideas? I'm just brainstorming at this point, so anything is welcome.