Killiney Hill Playground

If you haven’t taken the kids up to Killiney Hill yet, you’re genuinely missing out. The zipline alone is worth the trip — it’s a proper one, not some token feature — and the climbing castle with its slide keeps younger ones busy for ages. Everything’s fully enclosed, so you’re not constantly chasing toddlers toward the treeline, and the sightlines are good enough that you can actually relax for five minutes. Throw in a seesaw, merry-go-round, and swings, and there’s something for most ages. The walking trails right on the doorstep mean you can tire everyone out properly before or after, and parking is right there too.