Pizzeria launch- need sky writing in Toronto

Hey,

I would like to advertise the upcoming launch of my pizzeria. First of all, I would like to target an enormous range of audience. The advertising should be more cost-effective as well. I've Heard that the cost of aerial advertising is lesser than other sorts of advertising techniques. It is a creative way of expressing the brand. Messages can be displayed on the clear blue skies of the beaches or parks or any other location where people unwind their quality time. People will easily memorize the advertisement and it will become more popular through skywriting. One of my friends suggested skywriting in Toronto.  The two types of skywriting available are traditional and digital skywriting. What type of methodologies are used in skywriting? How long will it be visible in the sky? Please share your insights on this.

Thanks

Location
Toronto

415 HERITAGE CRES UNIT 102 SASKATOON SK S7H 5M5
L6R 9Z9 ON
Canada