I've not been yet, because I don't have any rods at the moment, but the Isar looks very good for fishing.
http://www.alpineangler.eu/Guest-angler-info-Isar
Beautiful scenery, shallow pebble beds, things like trout, grayling, chub floating around...
That is beautiful! Looks like a very nice trout stream :)
Yep - it flows right through the city of Munich as well, and i spotted a few trout last year while just relaxing by the riverside. So i've got no excuse not to try and hook one...once the weather gets just a little bit warmer ;)