> The Grand Canyon review is spot on though.

The review of the Grand Canyon annoyed me the most:

``` Can you hike in the Grand Canyon? Yes, technically. You can walk along the rim, but the view won’t change; same damn canyon on one side, same damn parking lot on the other. There are trails that go down into the canyon, but they’re a trap ```

So you can't even hike there, except of course for the hike that you can do.

"They are featureless steep inclines formed into endless switchbacks, and when they finally end, there’s nothing to do except go back up"

That is what hiking is! Granted, usually you hike up and then back down. And I wouldn't call the hike down into the canyon "featureless". Honestly, it sounds like this person just doesn't really like hiking, which if fine it's not for everyone, but that is just what there is to do in most national parks.