We recently did a one-trip trip to Pinnacle National Park, which is located about two and half hours drive from San Francisco. Pinnacle is one of the newest national parks in the US. It is a lot smaller and less known compared to Yosemite, but it has its own characters that attract many visitors like us to visit. We did a 5-hour long hike, which included a walk through the dark cave, a steep uphill hike and a long winding way down. The rock formations are the main attraction of this national park and they are just so impressive. Well, I will let the pictures tell the rest of the story...