2. Kasugayama Primeval Forest 春日山原始林 has been untouched for thousands of years. The forest stretches across a large area behind Kasuga Taisha Shrine. Logging and hunting have been prohibited here since AD 841 and this has preserved the forest as a rare ecosystem with over 175 types of trees, rare birds and wild animals including the sacred wild deer that roam around central Nara during the daytime. At night the deer return to Kasuga Forest where they live.