Hokkaido Shrine Festival Planning (Sapporo)

Hello,

I will be in Sapporo for the Hokkaido Shrine Festival Next week. However, as a non-Japanese speaker I am struggling to find information about what the festival entails.

So far in my research I have found that there is going to be a parade on June 16th and I found the route below but I have a couple questions in case anyone has attended before:

• Is the only difference between the blue and red route morning vs afternoon?
• What goes on when the parade stops at the place that looks like a Torii gate on the right side of the map?
• I have seen references to things happening at Nakajima park, is there any schedule or list of events there? I've seen there might be food stalls or a haunted house.

Thank you!

Link to parade route/schedule (in Japanese)