Join naturalist Mike Furnari to unearth the mysteries of what's written in and on the rocks. Moderate hike, 2 hours across Sand Beach up the cliff to a short stroll on Great Head to get an overview of granite, glaciers, and current forces shaping the scenery of MDI.

Mike has been teaching and sharing his love for Mount Desert Island for many years as a park ranger, naturalist, and biology teacher. His hands-on style, engaging manner, and sense of humor always make for an interesting and memorable experience.