That's perfect thanks.
I'm hiring a car nearby and the trip isn't supposed to be about railways, but as the location is near a botanical garden that should help me tie it in with non rail activity
You're welcome!
Since you'll be in the area and this is a non railfan trip, you may wish to consider a drive to scenic Niagara On The Lake. Not to be confused with Niagara Falls, Ontario (somewhat garish) or Niagara Falls, New York (struggling economically), Niagara On The Lake is bit of the old country (Great Britain) nestled at the mouth of the Niagara River flowing into Lake Ontario.
I've now looked at Bayview junction on Railpictures.net and it looks good.
Is there a way of knowing when Canadian trains are going to turn up or is the traffic in the area so frequent that it won't matter.
According to other railfan websites on the Internet:
Peak operating hours
Early morning and late afternoons are busiest, but traffic is heavy all day.
Approximate daily train frequency
About 75 trains daily, including approximately 14 VIA trains and 6 GO trains.
Radio frequencies
Canadian National: 161.415 (road), 161.025 (dispatcher)
Canadian Pacific: 160.815 (road), 161.325 (dispatcher)
Source:
https://trn.trains.com/photos-videos/hotspots/2006/07/hamilton-ont-bayview-jct This is from the US magazine website; 2006, so some information may be dated. If you bring a scanner, you can pick up the railroad chatter to help pin point when trains will arrive.
Here's a July 1980 Trains Magazine (US) article with map. Alas, the Toronto, Hamilton & Buffalo RDCs are no longer running--either the railroad, the trackage/route and the Rail Diesel Cars:
http://www.railviewmrc.ca/pdf/Bayview.pdf
The above article also mentions peak train times (39 years ago), but the peak times seem pretty consistent when I visited.
Happy train hunting!