Disadvantages
1- Tourism can often cause environmental damage with things like pollution and forest fires. Even if tourists behave responsibly, the sheer number of them can cause problems. Things like ancient buildings, monuments, and temples often struggle to cope with the vast amounts of tourist traffic and they suffer wear and tear or damage.
2- Often times, most of the tourism industry (travel companies and hotels, for one) in a developing country is actually owned by big foreign companies. They make the major profits, leaving local businesses with relatively little benefit.
3- Tourists can often lack respect for local traditions and culture, not following local dress standards, getting drunk in public or behaving rudely or inappropriately towards locals.
4- Tourism jobs are quite commonly seasonal and insecure with no extra benefits, such as pensions, sick pay, or health care. Some areas can be inundated with visitors during busy times, and then virtually deserted for many months.
5- Although often jobs are created by tourism, most are relatively low level, such as bar work, hotel service, restaurant serving, and so forth. They also have little prospect for promotion.
In conclusion, this is an amazing industry to contribute today's economy. It is a great way for people to spend their money and also for cities to attract other people.
Holly places & shrines and tourism
Religious tourism, also commonly referred to as faith tourism, is a type of tourism, where people travel individually or in groups for pilgrimage, missionary, or leisure (fellowship) purposes. Almost every religion in the world recommends travelling to other places as a tourist due to some goals and recognizes the spirituality of travel. In Quran and other scriptures, various places are given great significance for the roles they play in different belief systems.