To begin with, tourism industry has benefited not just the travelers but also many other sectors like hotel, restaurants, travel and tours companies and so on. For instance, huge tourism activity around Sydney Opera house has benefited thousands of local businesses. Moreover, such a trend are very likely to promote employment opportunities. In Nepal, for instance, tourism industry has covered a significant portion of total employment. This trend is extremely crucial as it promotes the overall development of the country.
The same industry, on the other hand, has some drawbacks. Firstly, growth in tourism means increase in the number of activity and more activity means more pollution. To illustrate, there are piles of junk food plastics and bottles floating over Sydney harbor because of high tourist activities. Another worrying point to note is, some of the natural heritages and resources are deteriorating as a result of such activity. Tourists love to visit such places resulting more locals to shift there to promote their business. Hence, natural resources are into chaos.
In conclusion, I think the advantages of tourism activity outweighs the disadvantages because it promotes employment to the locals and growth of other related sectors. Although, it could lead to pollution and deterioration of natural resources, controlling activities like strong rules and emphasizing cleaning activities can help minimize the problems.