Urban Explorers in Toronto - Downtown Tunnel Locations - Documentary

Still looking for a tunnel About a week ago I posted asking if anyone knew where a tunnel is in Toronto for a documentary I’m making. I’m posting here again because I’m still looking. For context the documentary is about The Toronto Tunnel monster. Also if possible any tunnels located in downtown Toronto because any a further than that are just too hard to get my crew to. Thank you in advance for your help again.