Having done the Cessna tour over the lines back in 1990, I would say it is worth seeing them by air, just to get an idea of the expanse of the lines and how the

Having done the Cessna tour over the lines back in 1990, I would say it is worth seeing them by air, just to get an idea of the expanse of the lines and how they sit in the landscape. Top tip - don't have breakfast if you're going on the morning flights. There was quite a lot of vomitting going on around me.