Go see: Nice ice experiments

Explore the science behind ice through experiments and artwork using colored ice on Ocean Science Sunday. Learn how to make ice cream. For ages 5 and older. $8 per child, which includes museum admission; adults are $6 each; reservations required. 1 and 3 p.m. Sunday at the Cold Spring Harbor Whaling Museum, 301 Main St. (Route 25A), Cold Spring Harbor, 631-367-3418; cshwhalingmuseum.org.

Take a hike

First Hike of the Year Family Adventures program. Walk through woodlands and observe nature, 1:30 to 3:30 p.m. Saturday; registration required. For ages 7 and older; dress for the weather. Connetquot River State Park Preserve, Sunrise Highway, Oakdale. 631-581-1072; nysparks.com. $4 per adult, $3 for children through age 17; $8 parking fee.