Hi there, welcome to Bern! I know this is a rather late reply and I hope you've found some friends in the meantime. Anyway, I have a little girl turning 4 in a couple of weeks and we'd be happy to meet you and your girls. We're not actually in Bern though. We live in Lyssach, about 20 mins from Bern and right opposite the big blue box of furniture, aka IKEA

I'll pm you my number if you're still interested