family recommendations for tours in Norway

Can anyone help with recommendations on excursions for a family visiting Norway (our children are 6 and 2 so I'm thinking we won't make it to Pulpit Rock.)

We are stopping in:

Stavanger

Flam (we know our 6 year old will love the flam railway since he loves trains!)

Geiranger

Olden

Bergen

Stavanger has a brilliant Oil Museum (definitely not as boring as it could sound) which the children should like. It has a great 3D presentation and is very hands on. Things to play with and climb on. There is also a good little hoho bus around the town which the children might enjoy.

Geiranger is a tiny place- but nice for a gentle stroll and shopping for souvenirs. You wIll tender in here which the children should enjoy. Also some nice walks.

Olden is very flat (generally around the ship's berth) so easy if you have a pushchair for the little one. There's a nice little land train/bus which is good fun and the children should enjoy this.

Bergen - I would suggest you do the funicular to the top where there is a children's playground as well as spectacular views for all across the town. The children should also enjoy the market at the fish market - lots of things for sale, 'fishy food' and fishing & pleasure boats to spot.

Norway is great for spotting models of trolls & reindeers - something our grand children always enjoy. They are familiar with stories about them which helps.

Pre-cruise reading for the children, and very fun books to read to them about Scandinavia - author Jan Brett. The illustrations are superb. These have been favorite bedtime stories of my grandchildren.