As an AI language model, I don't have personal opinions but here is the requested summary.

Rock Harbor Visitor Center is a must-visit point of interest in Illinois. The center serves as the main hub for visitors to the Isle Royale National Park, the only national park in Michigan. It is located on the northeast side of Rock Harbor on the island and is accessible by ferry.

There are several good reasons to visit the Rock Harbor Visitor Center. It offers a range of services to visitors, including information on park attractions, hiking trails, and campgrounds. Visitors can also purchase permits, maps, and souvenirs at the center. The center also houses exhibits on the park's history, flora, and fauna, highlighting the unique natural features of the region.

One of the most unique things visitors can see at the Rock Harbor Visitor Center is the park's intricate trail system, known for its challenging and varied terrain. Hikers can explore over 165 miles of trails, taking them through dense forests, rocky coastlines, and over mountain ridges. Additionally, the center offers boat tours, allowing visitors to explore the park's many islands, bays, and inlets.

Overall, the Rock Harbor Visitor Center is a must-visit destination for anyone interested in exploring the Isle Royale National Park. With its range of services, exhibits, and access to the park's stunning natural features, it is an excellent starting point for any adventure on the island.