Fly fishing in Granvin, Hardanger

I am coming to stay in Granvin in september with a view to fly fish the lake and rivers, but can not find any information on best rivers and types of flies etc. Al so where would I buy the license from? Is this available easily in granvin?

I have tried the tourist site but with no great help and also Uk based fishing sites with no help at all. I hope there is some one out there that can help!

Thanks for reading

:| Don't catch the fish - they are harmless

:) But you can go to this place, I think it is in Hordaland, and that part of Norway is beautiful for lake, fjord & mountain views