Ask HN: What do you think of my startup idea?

Like many people here, I have one or two life changing, billion dollar ideas each a week. Almost all of these however, don't make it through my 'reality filter' after putting some real thought into them.

I've got an idea that's been keeping me up at night and I think it may be the right idea for me (albeit not a new one).

I try to avoid comparisons, but imagine an Airbnb for outdoor adventures. People with outdoor skills and knowledge can post an adventure to take you on. Everything from surfing at Bondi Beach in Sydney, Australia, to climbing Mt Everest.

I realise it's open to all sorts of safety issues, but none of which, I think are insurmountable.

The number one thing, I would imagine, is to limit who can offer to host an adventure. Much like TaskRabbit filters their TaskRabbits, I'd like to make sure all adventures listed are by the books and run by qualified people. Safety and trust are paramount for these activities.

My questions to you are this.

Do you know of any startups trying this, or something similar?

Do you like or dislike the idea?

I should also qualify this by stating that I have domain experience in the adventure world. I've completed a bunch of world first expeditions, most recently skiing from the North Pole to Canada, and paddling a dugout canoe down the length of Papua New Guinea's longest river.

I appreciate any feedback, lovers or haters.