* Tadpole Patrol II — Lake Science Investigators, for children entering fourth, fifth and sixth grades, on Thursday, Aug. 22, on Lake Cobbossee.

* Tadpole Patrol 3 — Jr. Lake Monitors, for children entering sixth grade and older, on Friday, Aug. 23, on Lake Cobbossee.

* Family Tadpole Patrol, open to all ages, Saturday, Aug. 17, on Lake Annabessacook.

* Spotter’s Amphibious Adventures for children 8 and older on Friday, Aug. 16, on Lake Annabessacook.

Sessions cost $20. Space is limited and registration is required. For more information, call Kelsey at 621-4100, email kelsey@watershedfriends.com or visit www.watershedfriends.com.