All Weekend

Elephant & Piggies "We Are in a Play" - Smithtown. This musical experience is ripped from the pages of Mo Willems's children's book. Runs through April 11. Cost: $15.

Nano Days - Port Jefferson. At the Maritime Explorium, kids can explore the science of the small and see how nanotechnology affects your everyday life through cool activities. Cost: $5/person.

Weekend Workshop - Sayville. Each weekend a dedicated instructor at Mini Monet will lead your child in a craft/creation. Cost: $15.

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.

Saturday, April 4

The Joshua Show - Bridgehampton. At Goat on a Boat Puppet Theatre, Joshua is an award winning puppeteer actor and joy-maker based in Brooklyn. The Joshua Show inspires audiences across the nation, through live performances and online videos, to be themselves and help make the world a better place through gestures of kindness and love. Cost: $12 for everyone, $10 for members and grandparents and $8 for children under three years or additional child.

Peter Rabbit - East Islip. At BayWay Arts Center, this live play is shown on Saturday. Cost: $10/advance, $12/at the door.

Easter Bunny - Westbury. At Hicks Nurseries, visit the Easter Bunny on Friday and Saturday. Bring your own camera.Two sessions: 10am-12pm and 2-4pm. Cost: Free.

Spring Eggstravaganza - Merrick. At Fraser Park, kids can search for eggs on the lawn. Bring your own baskets. (Rescheduled from last weekend). Cost: Suggested donation of $1 per child.

Tiny Mouse Story Time - Bridgehampton. Story reading then head out to explore nature at the South Fork Natural History Museum. Cost: $7.

April Fool's Hike - Oyster Bay. At Sagamore Hill, this nature walk will meet behind the park's Visitor Center. It is free of charge and will last approximately 1 ½ hours. Please dress for the weather and bring a sense of humor. Cost: Free.

Let's Get This Garden Started - Bridgehampton. Help plant the Children's Museum of the East End's “seedlings” as they celebrate the arrival of spring! A local farmer will be on hand to help lead the workshop, teaching kids how to properly plant seeds and explain the ins and outs of getting them to grow. Cost: Free for members, $10 for non-members (includes admission to the Museum).

Egg Hunt & Spring Spectacular - Melville. At White Post Farms, join in the egg hunt Easter Bunny photos, crafts and more. Through April 5. Cost: $16 (cash only).

Egg Hunt - Bayville. At the Bayville Library, this event has been rescheduled from last weekend. Cost: Free.

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

Sunday, April 5

Family Sundays at the Museum - Roslyn. Weekly events for families at the Nassau County Museum of Art.

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.

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

Main photo: White Post Farms in Melville.