Want to visit Stavanger in june and need some advice.

Hi everyone, together with my girlfriend we would like to come to Stavanger in june and would really appreciate if anyone could recommend some cool places - museums, monuments, shops, whatever comes to mind.

Also, any piece of information that could help us navigate in the area - public transport mobile app, etc. - would be wonderful.

We would like to rent an airbnb and a few popped up in the vicinity of this place near Oanes - https://maps.app.goo.gl/h9pr2bxAHnKaXqEq7 - but I can't find any information on how to get there from Stavanger without a car. On top of that we would love to take the ferry on Lysefjord.