This is where we got engaged! We recommend the Redwood Grove Loop (.9 miles) where you will see some of the world's oldest trees. Henry Cowell Redwoods is one of the Santa Cruz Mountains' most beloved destinations. Home to a famous 40-acre grove of old-growth coast redwoods, the park has inspired visitors for generations, including explorer John C. Fremont and President Theodore Roosevelt. The tallest tree in the park stands approximately 277 feet tall. The oldest have been here far longer than any of us.