The Sorvalampi shelter is a rest stop along the Karnaistenkorpi hiking trails in Lohja. The shelter is located on the shore of Sorvalampi, and there is a campfire site and a woodpile next to it. You can hike independently along the marked trails in the area. According to city guidelines, you can reach the shelter by mountain bike using maintenance roads. There are no set daily hours or staff on duty at the shelter. Bring your own firewood, as the availability of wood is not guaranteed. Take your trash with you and follow the current guidelines for making fires. The city warns that the boardwalks are in poor condition in some places and can be slippery when it rains, as well as in the fall and winter. Check the trail conditions and follow the signs. Parking is available in the Suoniementaipale, Jantoniementie, and Kisakallio areas; the parking lots are separate from the shelter. Contact information is provided by the City of Lohja for further details regarding the maintenance of the shelters.