The landscape protection area located in the villages of Kastna and Ranniku in Tõstamaa is located on the coastal lowlands of Western Estonia. The landscape protection area consists of coastal ecosystems, junipers, coastal meadows and protected species typical of Western Estonia. Coastal meadows are still grazed today to maintain an important habitat for shorebirds.

Additional special attractions to the junipers are the old Kastna oaks that have been used as landmarks by coastal fishermen and sailors for centuries.

The ruins of the former Kastna manor can also be seen on the Kastna peninsula. The first mention of Kastna, formerly Kaskenne, was in 1228. Kihnu Island can be seen from the lookout tower.