(Ages 5 and up) Did you know that there are freshwater jellyfish in the quarry lake? It’s true! These small, nickel-sized jellyfish are only visible in the heat of summer, so join naturalist Stephen Lyn Bales for a canoe exploration of the quarry lake and we’ll see if we can find them! The fee for this program is $15 per person for members and $17.50 per person for non-members. Pre-registration is required; please call (865) 577-4717, ext. 119 to register.