i want to be a local guide

I am interested in being a local guide as I live in the the capital of Saudi Arabia and biggest city in the country - Riyadh. we are talking about a population of nearly half a million . An average trip around the city takes around 45 minutes. So, to make it easier for locals and tourists, I can give them ideas about the place they want to go to without getting stuck in traffic. They can have a bigger picture of what a place looks like even before getting there. They can read about it, even view photos or videos of the places so they would know what to expect when they get there. With that they can plan ahead, if they wanted to see the view either in the morning or late night, then they would know which ones to catch first without ruining their schedules with the crowd.