I think I could get very close via video. But that depends on a lot of my non-canyon experience moving around the world, and LLMs are very flawed in their ability to input video, so I think they would not get nearly as close.
The experience of every famous place I've visited after watching extensive video before hand, has been very different from what I imagined from the video.
I've been to a few natural wonders (including the Grand Canyon) that I saw in advance on video. At least for me it isn't close at all. Even if audiovisual elements could be near-perfectly reproduced by video (imo not even close with modern tech, no screen is capturing the brilliance of sunlight), you aren't capturing the temperature, the feel of wind or rain, the smell of the plants around you, etc.