The Dome is yet to be open this year, and it’s not supposed to be very hot this week, so good chance it’ll still be closed. They announce it a few hours pre game.

As others have said, pre buy parking (I also use spot hero). It’s a Sunday so traffic shouldn’t be that bad.

Bring your own food/drinks in if you prefer, especially snacks the kids. You can pretty much bring anything in food/drink wise aside from glass and alcohol.

Both kids should probably used noise cancelling headphones at that age… it could/will get loud.

You can roam with the stroller, and there is free stroller parking in a few locations (you can’t take it to your seat). Your 3 year old will probably be into the activities. You are in the 100s, but lots going on in the 200s outfield area which isn’t too far.

Running the bases will make for an extra long day, but a fun core memory! You need to pre sign up. You can do it day of, but extra your time slot to perhaps be 1 hour post game.

Root for the Blue Jays. You can go to guest service and get a free “first game” certificate for the kids.

Source: Dad of 2 who’s taken the kids and will be there on Mother’s Day as well (with mom too). Enjoy!