Suggestion for hike in Norway

Me and my dad are planning a 5-day hike in August. It’s our first time trying Norwegian trails and we would love some insider tips and recommendations for a good route.

Our dream route is:

A route around 80-120km. We can walk around 15-25 km a day depending on the difficulty of the route. We are going to the starting point by car so either a circular route or ending up a place with public transport back to start. We are going from Denmark so we probably can’t go all the way up north.

A route with trees – we are both gonna sleep in camping hammocks, so trees are essential!

A route with fishing spots – lakes, rivers, streams. Also tips on permits and other things to be aware of

A route with intermediate elevation – we like a good view, however neither of us are climbers and my dad’s knees have seen better days.

Finally, a route without to many tourists. I know this is a tricky one to ask on Reddit, and I understand if people don’t wanna share the good spots to each and everyone. We both have huge respect for that and neither of us are big on sharing stuff on social media. If you feel like sharing still please feel free to write a private message 🙂

I know this is a lot of specifics but any leads and recommendations are greatly appreciated 🙂 hope some people can help! Thanks

Ps. Photo is just for attention (from the dolomites last summer)