
Guide
Oyama Nature Park is a beautiful natural area located near the summit (elevation 317m) of Oe Town in Yamagata Prefecture. The park's most significant attraction is the annual "Oyama Nature Park Lily Festival," held from late May to early June. During this period, approximately 60,000 Hime-sayuri lilies—a rare and precious plant species primarily found in southern Tohoku and parts of Niigata Prefecture—bloom in spectacular abundance. A tourist information center is available on-site, where visitors can often find brochures and local souvenir-related items.
The park has been developed to preserve and showcase the natural environment of Oe Town. It serves as a vital habitat for the Hime-sayuri lily, a precious plant species, allowing visitors to witness the seasonal transformations of the landscape. Through events like the Lily Festival, the park plays a key role in promoting the natural beauty and botanical heritage of the region to both locals and visitors.

The primary highlight of the park is the seasonal blooming of the Hime-sayuri lilies. The sight of 60,000 lilies in full bloom from late May to early June is truly unforgettable. Additionally, the presence of a tourist information center makes it easy for visitors to gather local information and brochures. Exploring the park allows you to observe the delicate growth and blooming stages of these rare plants within a lush, natural setting.
The best time to visit Oyama Nature Park is during the peak blooming season of the Hime-sayuri lilies, which runs from late May to early June. This coincides with the "Oyama Nature Park Lily Festival." Because the flowering status can change based on weather, it is highly recommended to check the latest updates on the official Oe Town website before your visit. Since the landscape changes significantly with the seasons, planning your trip around the blooming period is essential for the best experience.
Visitors can enjoy peaceful strolls through the natural landscape. During the Lily Festival, the tourist information center may offer guided tours to deepen your understanding of the local flora. You can also find various local goods for purchase at the center. It is an ideal place to connect with nature and witness the seasonal shifts in the mountain scenery.
The area around the park features several other natural attractions, such as the Onuma Lakeside Campground and the Sagae Ichikoi no Mori. You can also explore local cultural facilities like the Oe Town Yamasato Exchange Center or