The Säveån valley
Fantastic area for those who don't have a car, but still want to get out into nature easily.
The nature reserve "Säveåns dalgång" starts south of Stenkullen and stretches up to Floda. The best way to get here from Gothenburg is to take the local train to Stenkullen station and walk under the railway and down to the river where there is a newly built bridge that takes you over to the hiking trail east of the river. The hike up to Floda station takes a few hours because there is a lot to see and experience along the way such as starlings and wood anemones and beaver-gnawed trunks. During the spring, you walk through seas of wood anemones and also some liverworts at the so-called liverwort sea. The birdsong is stunning with the chiffchaff (Phylloscopus collybita) sounding his "chiff-chaff" and the wood warbler (Phylloscopus sibilatrix) with his rolling coin. You walk as if you were in a hall of leaves, but there are open spaces here and there, feel free to have coffee on a rock by the river's edge and if you sit still and still long enough, a beaver might swim by. If you come in the summer, you can swim by the bridge at Stenkullen (at your own risk - there is a stream!).
For the recreational angler, it is fly fishing for the stationary stream-living trout that applies.