True. At the same time, travel has gotten so much cheaper and accessible that it’s really impossible to go anywhere and enjoy it in peace. I chose to go to Paris in dead winter to avoid the summer crowds - the lines were not any shorter. It feels like a long time ago but only a few years ago I was visiting a few national parks and the hiking trails were modestly crowded. In comparison they are all overrun now. The difference I’d say is AirBNB. My choices used to be shitty motels or campgrounds that never have space. Now, it’s a beautiful home by a stream just outside the park in a ranch. Shared with a few friends the cost is a fraction of a hotel room. Hotels were - not sure fully intentionally - used as a mechanism to enforce visitor counts. With AirBnB that equation is out the window. With low cost airlines making flights cheaper and better fuel efficient cars making driving cheaper and AirBnB making stay cheaper and inexpensive, the tourism sector is exploding. I do not think this is sustainable. As with the other cases, these things are externalising the cost to the cities and the parks do deal with.