All Weekend

Model Train Exhibit - Hicksville. N-Scale layout along with the Long Island HOTrack modular layout at the Long Island Traction O Gauge Trolleys operating at Broadway Mall. Cost: Free

The Snow Queen - Northport. Live performance at the Engeman Theatre. Runs every Saturday and Sunday through March 8.Cost: $15/ticket.

Little Mermaid Jr. - Smithtown. Live performance at The Smithtown Center for the Performing Arts. Cost: $15.

Celebrate the International Year of Light - Port Jefferson. Investigate properties of light at the nanoscale and make your own nano-inspired bookmark at The Maritime Explorium. Cost: $5/person.

Seal Cruise - Freeport. Hop aboard the Captain Lou in Freeport, hosted by the Riverhead Foundation to search for harbor seals and other mammal life. Runs through April 12. Cost: $19-$26.

Messy Afternoons at LICM – Garden City. At the Long Island Children’s Museum, all weekend long. Cost: Free with museum admission.

Explorer Family Backpacks – Uniondale. Pick up a backpack and explore the world through this Hofstra University gallery. Cost: Free.

Saturday, February 21

Maple Sugaring - East Setauket. At Benner's Farm, visitors will receive a maple sugaring demonstration, food and other activities. Cost: $7/adults, $6/children.

Science: Everyday Explosions and Eruptions - Bridgehampton. At the Children's Museum of the East End, families can conduct experiaments and log the results. Cost: $22 for non-members, $10 for members (includes museum admission.

Lodo & Crystal's Bird Story Time - Bridgehampton. Crystal and her story-time puppet, Lodo the River Otter, love to feed birds in the winter and watch the fun at the feeder. Create a craft too. Cost: $7/admission + $5/materials fee. 

Puppet Show - Sag Harbor. At Goat on a Boat Puppet Theatre, Jack & the Beanstalk, DreamTale is being performed. Cost: $12, $10/adults, $8/kids under age 3.

Winter Nature Craft - Glen Cove. At Garvies Point Museum, kids can create a winter nature craft and enjoy a short film. Cost: General admission + $5 craft fee.

Family Yoga - Roslyn. Parents + child can practice yoga together at Practice Body, Mind, Soul. Cost: $30.

Shrek the Musical - Bellmore. Live performance at The Showplace at Bellmore Movies. Cost: $10/ticket.

Creative Movements - Westbury. Kids dance class for ages 3-5. Runs through March 21. Cost: $20/class.

Little Bo Peep - Port Jefferson. At Theatre Three, this is a live performance. Through Feb. 21. Cost: $10/ticket.

Science Saturday at the Long Island Science Center – Riverhead. Enjoy a day at the Long Island Science Center. Cost: $5/person.

Sunday, February 22

Maple Sugaring - Commack. At Hoyt Farm, families can see a demonstration of both Native American and Colonial maple sugaring practices. Cost: $3/person, $8/family.

Blast Off - Garden City. Mae Jemison, a physicist and NASA astronaut, became the first African-American woman to travel to space in 1992 aboard the Endeavor shuttle. Celebrate Black History Month at the Long Island Children's Museum and pay tribute to Mae's journey to space by creating a rocket that you can pretend to "blast off"! Cost: $3 + museum admission. 

Weekend Open Art Studio for Kids - East Hampton. Budding artists can work independently at Guild Hall on a variety of arts and crafts projects. Also on Sundays through Feb. 22. Cost: Free.

Seatuck Family Nature Club - Islip. These programs will be geared around the current season and include topics such as seasonal birds, tremendous trees and signs of the season. Cost: Free.

Family Sundays at the Museum - Roslyn. Each Sunday Nassau County Museum of Art offers a 1pm docent-led family walk-through of the exhibition and supervised art activities for the whole family beginning at 1:30pm. Cost: Free with museum admission.

Lego Club - Bridgehampton. Enjoy two hours of Lego fun every Sunday at the Children's Museum of the East End. Cost: $10/admission.

Sunday Kids Club - East Hampton. Drop off kids for a 9am-12pm kids camp at Hampton Kids. Cost: $30-40.

Main Photo: The Snow Queen at The Engeman Theatre.