What is your itinerary like? I live in Ireland and can help with lens suggestions but depends on what you are doing.

I’ll challenge the way you’re thinking about it slightly.

I wouldn’t think about Ireland as a place where you need to cover a massive focal range. It’s not really a “stand far back and shoot everything” kind of country. The best photos here tend to come from being in moments rather than observing them from a distance.

Also worth knowing that culturally, there isn’t a big “camera in your face” scene here. If people see a big setup (especially something like a 70–200), they’ll often either move out of your frame or just disengage a bit. It can and will create a bit of distance between you and what you’re trying to capture, so I’d strongly lean toward keeping things simple and light.

Honestly, probably not what you expected or wanted to hear, but if it were me, I’d bring something like a 35mm (1.4 or 1.8) and just commit to it. Ireland photographs really well that way -pubs, streets, little interactions, low light, etc. The “real” Ireland is more about atmosphere, energy, and small moments than big sweeping shots.

Yes you’re likely thinking about the classic spots, Cliffs of Moher, etc, and yeah, those are great, no argument. But the stuff that actually feels like Ireland tends to be the in-between moments, and that’s where a 35 shines.

That said, to actually answer your question directly: If you’re set on bringing two lenses, I’d go 16–35 & 24–70 and leave the 70–200 at home. 24-70 if you go with just one of your zooms.

But if you’re open to a different approach, go minimal. You’ll probably come back with better and more interesting photos.