To whom it may concern,
I am writing to you regarding your notice about ideas to attract more visitors to our town (this comes from the question, you need to change it. For example - regarding your notice about suggestions to bring in more tourists to our town). I have lots of ideas and would like to share them with you.
Firstly, in order to attract younger visitors organising musical events could be a good idea. There are many young singers who would be delighted if they had the chance to perform here.
Secondly, building new walking tours would be great. I think that there are many people who would like to have a walk, but they cannot because of the absence of walking tours. (This repeats walking tours. Where could a walking tour be?)
Thirdly, our town is surrounded by fantastic parks. I suppose that families will be over the moon if the parks are cleaner. So, keeping them spotless will make our town more attractive to parents and their children.
In conclusion, I think that our town has a lot of unexplored potential. If you follow my ideas, I think it will be much more attractive to tourists.
Your faithfully,
Matteo
This is very good, nicely laid out. The most important thing is to vary your vocabulary.