Venture out with a park guide for a free, nature hike to explore the forest and stream ecosystems and natural history at Tryon Creek State Natural Area. Topics will vary from week to week, and will be geared for ages 5 through adult, but all ages are welcome. Parents must accompany kids on all hikes. No groups more than 10 please. For more specific information, call (503) 636-9886 ext. 225. Free, no pre-registration required.