The South Park Blocks is a prominent urban park located in downtown Portland, Oregon. Spanning approximately 12 blocks, it holds significant historical, cultural, and recreational value. This summary is based on information gathered from multiple independent sources for accuracy.

Reasons to visit:
1. Historical Significance: The South Park Blocks are the oldest public park in Portland and have been an integral part of the city's history since its establishment in the mid-19th century.
2. Cultural Hub: The area surrounding the South Park Blocks is home to multiple cultural institutions, including the Portland Art Museum, Oregon Historical Society, and Portland State University, making it a vibrant cultural hub.
3. Natural Oasis: The park boasts beautiful tree-lined streets, manicured lawns, and numerous statues and fountains, offering a tranquil respite from the bustling city.
4. Events and Festivals: The South Park Blocks serve as a venue for various events and festivals throughout the year, including art shows, farmers markets, and the Portland Rose Festival.

Points of Interest:
1. Portland Art Museum: Known for its extensive collection of artwork from various periods and cultures, the museum is a must-visit for art enthusiasts.
2. Oregon Historical Society: This museum offers insights into Oregon's rich history, with exhibits that explore various themes, including Native American culture and the Oregon Trail.
3. Portland State University: The South Park Blocks are bordered by Portland State University, known for its vibrant campus life and beautiful architecture.
4. Lincoln Hall: Within the park, Lincoln Hall is a historic building that hosts theatrical performances, concerts, and lectures.

Interesting Facts:
1. The park blocks were inspired by the urban planning of Paris, with diagonal streets intersecting the park, providing a unique layout.
2. The South Park Blocks were initially designed to resemble a promenade, with pathways and spaces for leisurely walks.
3. The park is home to several notable statues, including the statue of Theodore Roosevelt, the Elk Fountain, and the statue of Sacajawea.

Best Time to Visit:
Portland experiences a temperate climate, making it pleasant to visit year-round. However, the summer months of June through August offer the most favorable weather, with warm temperatures and less rainfall. This time also coincides with various outdoor festivals and events.

Please note that it is always recommended to cross-check information from multiple independent sources for the most accurate and up-to-date details.