Disclaimer: I work for one of General Mills' AORs, but if you like this, Nature Valley has been working on something similar for quite a while now: http://www.naturevalleytrailview.com/

Moving forward makes me feel a little bit too much like I've just tripped and am about to head plant into some rocks.

I think they're trying to replicate the zoomy scoot forward effect Google does with Street View. I'm not certain that would work well with windy trails, though. A crossfade might work better.

Way cool. How was this implemented? Someone hiking all these trails carrying photography gear?

Looking at the "street view", it seems they had some sort of robot on treads taking shots with a camera. Seems reminiscent of some of the mars rovers.

I see the shadow of a human wearing a backpack. Some of the photos have hair in them.

Haha, yes some sort of "robot" - it's a humanoid carbon unit with a backpack :)

If you 'look' straight down, you'll get your answer (the top of someone's head gives the game away!)

I like the idea but it makes me feel queasy :/

God, I read 'TrailerParks at first!

op, would you be willing to license this for a different vertical?

Very nice. It's sites like these that I love to spend a few hours on. I just wish there were a list with thumbnails for all the trails. Clicking on them one by one on the map isn't efficient or friendly.

I love seeing parts of the world I'll probably never visit or am too afraid to visit. And the resolution is possibly the highest quality I've seen. Although it does take a bit to load.

Controls on mobile are backwards, up goes down and laterally inverted too.