Petäys Resort is in the Village of Tyrväntö. It is quite far from Hämeenlinna, atleast it feels like that when you drive in the end of the road. This small hotel is in the cape and the lake Vanaja is all over you. There is also lots of activities for adults and for children.
Lake side smoke sauna and the hot tube where absolutely best experience. Having a sauna and dipping to the cold lake makes you feel good. Sitting on the hot tube and watching the stars makes almost the moment magical. If friends in sauna would be quite I think that you can hear the silence!