Tourism is big money for many tribes and individual entrepreneurs. But it also has the potential to diminish people’s quality of life. Residents in Juneau, Alaska are considering a limit on the dozens of cruise ships that unload thousands of visitors there every summer. Among other things, critics say the steady stream of outsiders detracts from what they enjoy about living there. Some tribes have closed off tourist attractions altogether. We’ll find out about “overtourism” and ways to avoid it.