Can you actual get a site in Algonquin just showing up?

We pulled in and no problem without a reservation.

I never make a reservation and have always been able to get a site. There are a number of non reservable sites in each camp ground. The best time for these sites is Sun - Thur. The Ontario Parks reservation system is a joke. Many times I have gone on line where it says everything is booked but when I get there outside of weekends the place is half empty.

If its booked solid online you are fighting for the non reservable scraps. I would find a different Ontario park that can be reserved. There are a ton of nice ones in the area. We camp almost exclusively at Ontario parks never go without a reservation. For busy highly popular parks we book the max allowed (I think 5 months) in advance. Others we book as much as the week before.

Because its to late to book online for the summer Jebby14

Arrive at the campground office before they open at 8am to be first in line for the non-reservable sites that are made available at that time. You may get a site, best to try Canisbay, Lake of Two Rivers or Pog lake C.G. Mew lake will be next to impossible during the summer months.

y not just book online. Ontario parks is friendly for online booking and then there is nothing to worry about

It's a******shoot, no guarantees. Really depends on time of year, campground, and site size. For the summer months things are usually booked solid for your size requirements. Only chance if there is a lat minute cancellation and you show up at the right time.