Uncharted Waters: Diving into the Holdings of the NYS Archives. Our popular Winter Speaker Series will return in 2023, featuring both in-person and virtual programs with experts from around the world. at 2 p.m. at 32 Washington Ave

Uncharted Waters: Diving into the Holdings of the NYS Archives with Jane Wilcox. Come learn about both familiar and obscure resources that will help you advance your New York research. 7 p.m. at 32 Washington Ave

Bethlehem Chamber Polar Bear’s Name. Hamlet will debut for photo opportunities at First Night. Alyssa Bercharlie of Selkik, will receive a $25 gift card to Romo’s Pizza and Restaurant in Glenmont. between 6 and 7:30 p.m. at Four Corners Luncheontte 2 Grove St. Delmar 12054.

First Day Hike. Explore one of Thacher Park's most popular trails past frozen waterfalls, pine and hemlock forests in a winter wonderland hike! Total distance is approximately 2 miles. Registration required. Call 518-872-0800. 10 a.m. at Thacher State Park Visitor Center

What’s Going on Inside of Me? Little Edisons read the book My Outside: An Independent Mind in a Dependent Body (by Sara Pyszka and Corrie Legge) and learn about what’s underneath our skin. Then students learn about the heart, lungs, and digestive system and make a model to take home. Jan 4 to Jan 7. Cost $40. Classes will start from 9 a.m. to 4 p.m. at the Museum of Innovation & Science 15 Museum Dr, Schenectady, 12308 

Full Moon Wolf Walk. Celebrate the Wolf Moon with a short illuminated walk in the woods of the Woestyne. Cost $10 and, free for members.  Registration is required at  schenectadyhistorical.org/event/wolfmoon. 5 p.m. at Mabee Farm Historic Site 1100 Main Street Rotterdam Junction, 12150

Bethlehem Chamber Polar Bear’s Name. Hamlet will debut for photo opportunities at First Night. Alyssa Bercharlie of Selkik, will receive a $25 gift card to Romo’s Pizza and Restaurant in Glenmont. between 6 and 7:30 p.m. at Four Corners Luncheontte 2 Grove St. Delmar 12054.

All Aboard! Celebrate the Museum’s annual Model Trains Show! Dec. 26, through Dec. 30, Cost $40. Classes will start from 9 a.m. to 4 p.m. at the Museum of Innovation & Science 15 Museum Dr, Schenectady, 12308 

Winter Scavenger Hunt. Join an educator as we learn about winter wildlife on a guided scavenger hunt! We’ll walk short, easy trails around the Visitor Center if the weather is good and move indoors if not. Recommended for ages 12 and under. Call 518-872-0800 to register. 1 p.m. at Thacher State Park Visitor Center 

Happy New Year! Fun Facts and More. Community Caregiver's Lunchtime Chat. 1 p.m. via free conference call at 518-992-6661.