Pinnacles National Park
We were suggested by the ranger to take a 9.5 mile hike to see the best of the park. included high peaks trail climbing steps carved into the rock in the 30's. And going through one of their caves (balconies cave) as the other was closed for bat breeding season. 1,500 elevation gain in the first few miles but totally worth it. With a few bathrooms along the way makes it very convenient if you need to stop. Overall an amazing hike and views of California condors when you get to the top.