One by one, we drop from our tree boats, descending like spiders on a line, and finally touch the familiar ground, bringing with us something from this other world.
"It's going to take me a long time to comprehend," says Heising.
Helen Kennedy feels much the same.
"It actually surprised me a lot," she says. "I have never found myself to have a fear of heights. It was different though. It's very different from being on a mountain top. It's something that I can't describe in words."
Her husband, Adam, is already thinking about their return.
"It'll be an amazing experience coming back here, after these ropes are gone in 50 years, and say, we were up there 50 years ago and the trees are still there. So amazing. Really amazing."
Life-changing for us. Everyday life for Seppa and Miron.
Click HERE for more information on the Pacific Tree Climbing Institute.