PS: The US National Park system is awesome.

Also, I love how some places are left rugged and undeveloped, while others have an excellent infrastructure in place to allow people to see the highlights even from the car. At first, I thought it was pathetic: you drive through, get off at the parking lot, take a picture, and drive to the next parking lot, ad nauseam.

That's not seeing nature, I thought.

But then, if you're older and somewhat infirm, or, say, wheelchair bound - the accessibility of many parks still allows you to experience the sights.