Õisu Põrguoru (Õisu Hell Valley) hiking trail is 9 km from Mellin Resort.
More information on the hiking trail can be found here: https://loodusegakoos.ee/kuhuminna/puhkealad/sakala-puhkeala/1231
More information on the hiking trail can be found here: https://loodusegakoos.ee/kuhuminna/puhkealad/sakala-puhkeala/1231
