The main reason for this is because the city has many tourist attractions, such as ... There are plenty of activities such as. .. There are so many tourists come here.
The main reason the city is very interesting because there are so many attractions, such as .... there are plenty of activities such as ... As a result, many tourists come here.
The main reason this city is of interest because there are many tourist attractions, such as... There are many activities such as...). Therefore, there are a lot of tourists coming here.