Have you admired a tree while thinking that’s “a big one”? Meet the biggest trees of Montgomery County on a guided driving tour with Joli McCathran, champion tree coordinator with…

Learn how you can grow native plants, even in urban spaces! Join us in building a container pollinator garden to promote pollinator conservation. Plants will be available for participants to…

Sail the weekend away aboard a traditional oyster boat of Maryland, the Skipjack Sigsbee. We’ll cruise from the Inner Harbor to our campground at Sandy Point State Park with a…

Join us for a tour of a 1/3-acre property in Baltimore (21212) that has been converted from a previously overgrown backyard to a gorgeous oasis. Native plants have been emphasized…

Led by guides from Nature Worx, we will explore the beautiful grounds at Masonville Cove, slowly walking and pausing frequently, using all of our senses to drop out of doing…

There’s a whole different world out there under the leaves, rocks and logs! Take a hike on the Gwynns Falls/Leakin Park trails with a naturalist to discover the reptile and…

Learn to naturally dye a silk handkerchief and a cotton tote bag using 2 methods of natural dyeing: bundle dying + dip dyeing! Using a variety of dried flowers, roots,…

Learn the basics of bicycle maintenance from our friends at Baltimore Bicycle Works (BBW). The first half of this class covers the anatomy of the bicycle, guidance on how to…

Join the weed warriors for our monthly stewardship event. Meeting place TBA. Bring tools and gloves or borrow some from us! Click here for more information.

This two-part workshop opens with the art activity, Wishes for Fishes, by local eco-artist Bridget Parlato, as she creates a living tale of life in the harbor from stories YOU…

Discover the underwater world of macroinvertebrates. See them up close. Learning how they help indicate stream health, and what roles they play in stream ecology. NHSM volunteers will show participants…

Have you seen a cool science fact while doom scrolling and wish you knew more? Join our introduction to ecology session! Ever wondered why you rarely see Baltimore Orioles in…

Discover the secrets of black gold by learning how to create and optimize a compost pile. This class will give an overview of city solid waste practices, explain the biological…

Whether you are a child, an adult, or somewhere in between, we can all find wonder in streams and rivers. Wander through the stream with us, searching for creatures and…

In this class, students will make cyanotype prints of botanical compositions from natural materials. A cyanotype is a primitive photographic process that produces deep blue images after being exposed with…