Piilolammi recreational area is part of Kytäjä-Usmi, which is an exceptionally large forested area in Hyvinkää in southern Finland. We met at Piilolammi this summer to spent a day outdoors exploring some trails and catch…
Piilolammi is a gate to ravishing Kytäjä-Usmi
![Piilolammi Kytäjä](https://www.outinthenature.com/wp-content/uploads/2020/06/Piilolammi-Kytäjä.jpeg)