Oak Openings Preserve Metropark is a 4,000-acre natural area situated in northwest Ohio, United States. It is known for its rare and endangered plant and animal species, towering sand dunes, and diverse array of recreational opportunities. There are several good reasons to visit Oak Openings Park, including hiking, bird-watching, picnicking, and camping.

One of the primary points of interest in the park is the Oak Openings Region, which is a unique ecosystem that supports over 180 rare and endangered species. Visitors can explore the region on several well-marked hiking trails, including the Oak Openings Trail, which offers panoramic views of the park's sand dunes, wetlands, and forests.

Other notable points of interest in Oak Openings Park include the Beach Ridge Area, which is a series of towering sand dunes that were formed over 11,000 years ago by retreating glaciers; the Buehner Center, which features interactive exhibits and educational programs about the park's natural history; and the Lodge at the Preserve, which is a popular spot for weddings and other special events.

Interesting facts about Oak Openings Park include that it was once home to a thriving community of Native Americans who used the area's abundant natural resources for hunting, fishing, and gathering; that it was designated a state park in 1940; and that it has been a popular destination for bird-watching enthusiasts for over a century.

The best time of year to visit Oak Openings Park depends on the visitor's interests. The park is open year-round, but each season offers a different array of recreational opportunities. Spring is a popular time for bird-watching and wildflower viewing, while summer is ideal for camping, hiking, and swimming. Fall is known for its vibrant foliage, and winter offers opportunities for cross-country skiing and snowshoeing.