Influence ... one has to be careful with that. I took my sister's twins today to their first cave. At first they were a bit scared, but soon they had helmets on, one was holding my camera and the photographing the other one going through the cave. I wonder where they learned that? :-)
We visited Aleksis Kivi's cave that I've been to before -- an excellent cave to visit for kids, safe, easy, but still cave-like. And only 50m from road. Much recommended! But does anyone have a recommendation for other caves that are equally easy, in the Helsinki region? At the moment I'm drawing a blank, because I can only think of boring-ish roof caves that will not feel like caves, and dangerous cliffs and rock piles. Any ideas?