Tourism is a double edged sword. Large chunks of the world with very fragile eco-systems, sometimes the last few of a species depend on the tourists for their income. But tourists don't have quotas and too many of them destroy the thing they seek to find. It's a delicate balance. Kudos to mr. Winchester for realizing that all by himself on that boat, it's a hard realization that the best tourists are the ones that you can't see.