Standing at the base of Earth's tallest tree, the coast redwood, is one of life's most humbling and amazing experiences. You are watching the Smith River as it flows through world-renowned Jedediah Smith Redwoods State Park. Keep an eye out for river otters and bald eagles. You may see anglers and kayakers, too. Though people rarely see them among the redwoods, you may hear marbled murrelets (an endangered seabird that nests only in ancient branches) in the early morning.