Naturalist Programs & Courses

Immerse yourself in the St. Croix Valley. Discover ongoing youth and adult classes or expert-led certification courses designed to inspire lifelong stewardship.

Give Your Kids

Screen-Free Wonder

Willow River Naturalist Programs

Preschool Young Naturalist Series

There’s no better time to build a lifelong love for nature than early childhood. We help young learners explore, play, and discover the outdoors.

Weekly programs held throughout Fall, Winter, and Spring.

Who Can Join: Specifically designed for preschoolers ages 3–5 and their caregivers.
How It Works: Every week, little explorers connect with the natural world through hands-on games, nature crafts, outdoor hikes, storytime, and wildlife discovery!

Registration FULL for Fall 2026 classes.

Wisconsin Master Naturalist

St. Croix Valley Training Course

St. Croix County, Carpenter Nature Center, and The Friends of Willow River & Kinnickinnic State Parks are partnering to offer the Wisconsin Master Naturalist training. We will meet one Saturday a month, March-August, throughout the St. Croix Valley. The training will include some classroom time but will focus mostly on local and regional field experiences to exceptional sites for learning in our topic areas (geology, ecology, plant communities, wildlife, interpretation, water, and human impacts). Many regional experts will be sharing their knowledge, research, tips, and inspiration with us as they lead or present parts of the training.

Explore WI Master Naturalist Program

Willow River Naturalist Programs

Summer Naturalist Series

Weekly programs held throughout June, July, and August.

Who Can Join: Open to individuals and families of all ages. (Note: Some sessions are best suited for ages 6–8 and up.)
How It Works: We focus on a brand-new monthly theme, with fresh discoveries and activities every single week.

Monthly Themes: