Fishers aged 18–64 years have to pay a fishing management fee, except for angling with a hook and line,ice-fishing, and herring fishing with a rig, which are free of charge. The fishing management fee entitles you to lure fishing using one rod, reel and lure in the whole of Finland.
For other fishing methods and for fishing with more than one rod 18-64 year old fishers need to pay the fishing management fee as well as have permission by the water owner. Fishing licenses (for fishing with passive gear) to lake Vesijärvi in the city of Lahti are sold at Lahti-Piste in main library.
See the link above for detailed information.