>>26864555Thank you thats very helpful
>>26864538According to
>>26864555 we can go 300m at the deepest so if a city starts there, at 700ft below, and the tallest buildings are only around 200ft tall (the Pantheon is 143ft tall and I'm basing the number off of that), then that gives a 500ft buffer between the tallest building and where a human can reach. Also I should mention here
>>26864338 I forgot to specify 200 feet is the deepest they can go for recreational purposes. With the proper equipment a diver can reach depths in the thousands. So any human down there would need to have a special type of air tank, the proper suit and other gear, along with the training to deal with the pressure difference