When is the first day of summer? In 2025, the official first day of summer is Friday, June 20th. This date marks the longest day of the year.  Download the Summer Nature Hunt pdf here and take a hike at the Slim Baker Area. Share what you find with us at info@slimbaker.org! We can’t wait to see what you find!

This is a self-guided event that you can take place anywhere in the Newfound Area or come up to the Slim Baker Area to explore our diverse trails!