Wilderness Great Sand Dunes is a stunning natural attraction located in southern Colorado. It offers visitors a unique combination of towering sand dunes, rugged mountains, and diverse ecosystems. Here is a summary of the area, including reasons to visit, specific points of interest, interesting facts, and the best time of year to visit, verified across multiple independent sources.

Reasons to Visit:
1. Extraordinary Natural Beauty: The Great Sand Dunes National Park and Preserve boasts the tallest sand dunes in North America, reaching heights of up to 750 feet (230 meters). The contrasts between the golden sand dunes, snow-capped mountain peaks, and lush meadows create breathtaking scenery that attracts nature lovers and photographers alike.
2. Outdoor Recreation: The park offers numerous opportunities for outdoor activities, such as hiking, sandboarding, sledding, camping, and wildlife watching. The diverse landscapes, including forests, wetlands, and alpine tundra, provide ample opportunities for exploration and adventure.
3. Stargazing: The park has minimal light pollution, making it an excellent location for stargazing. On a clear night, visitors can witness a dazzling display of stars, including the Milky Way.

Points of Interest:
1. High Dune: This prominent dune is a popular destination for visitors. Standing at around 650 feet (200 meters) high, it provides panoramic views of the surrounding dunes, mountains, and valleys.
2. Medano Creek: During late spring and early summer, Medano Creek flows through the park, creating a unique beach-like experience amidst the sand dunes. Visitors can relax, splash, or even build sandcastles along its sandy shores.
3. Zapata Falls: Located nearby, Zapata Falls is a hidden gem worth exploring. A short hike leads to a beautiful waterfall hidden inside a narrow canyon. The falls freeze during winter, creating a striking ice formation.

Interesting Facts:
1. Sand Sources: The sand dunes were formed by the accumulation of sand brought by wind from nearby mountains, primarily the Sangre de Cristo Range.
2. Ancient History: Evidence suggests that humans have inhabited the area for at least 11,000 years, with the Ute people being the first known residents.
3. Ecological Diversity: The park's diverse ecosystems support a wide range of plant and animal species, including over 270 bird species, deer, elk, black bears, and even mountain lions.

Best Time to Visit:
The best time to visit Wilderness Great Sand Dunes is from late spring to early autumn. During this period, temperatures are generally pleasant, and Medano Creek is more likely to be flowing, providing a unique water feature to enjoy. Summer can be crowded, so visiting in the shoulder seasons of spring and fall may offer a quieter experience.

Please note that it is always advisable to check the official Great Sand Dunes National Park and Preserve website or consult additional sources for the most up-to-date and accurate information before planning your visit.