I am not saying there isn't value in outdoor activities and climbing, but I find it interesting that we set the level of technology that we had as a kid as the 'baseline' for a normal experience. All those things you said about self-driving flying vehicles could be said about cars in general, but you don't think of that because cars are just 'normal' to you.
Being in a beautiful landscape isn't any more 'natural' than being somewhere boring and bland. Visiting different areas and seeing natural wonders is certainly enjoyable, and can improve your health and well being.
But that would be true even if you lived a primitive hunter gatherer lifestyle; most people aren't going to be living on a mountaintop, or living in a forest.
A big part of what makes visiting the pristine nature such a cathartic experience is that it is different from your day to day life. Novelty is a strong desire in humans. If you lived on an isolated mountaintop, you might feel that same good feeling visiting the city that you get visiting the mountaintop.