Saturday

National Safe Boating Week Event
Tanner Park
Copiague
9:00am - 5:00pm
Free
United States Coast Guard Auxiliary, Division 1, in conjunction with the Town of Babylon will be holding a free interagency Boaters’ Safety Event. This event will introduce the marine community and the general public to the many agencies that provide boating-safety services, equipment and education. The Coast Guard, local agencies, and boating-safety-equipment-manufacture representatives will have live demonstrations throughout the day. Fire department Marine units will also be conducting in-water demonstrations. The Coast Guard Auxiliary will have special live demonstrations of search-and-rescue, towing, flare handling, firefighting, and vessel Inspections. Informative and fun for the entire family! Rain date: May 20.

NanoDay
Long Island Children's Museum     
Garden City
11:00am - 2:00pm    
Free with museum admission
Try fun scientific experiments that explore the super small. NanoDays is a nationwide educational project focused on nanoscale science and engineering sponsored by the NISE Network (Nanoscale Informal Science Education).

Turtle & Tortoise Pageant
Cold Spring Harbor Fish Hatchery & Aquarium
11am
Free with museum admissionBring your turtle or tortoise to this pageant to celebrate World Turtle Day. Preregistration is  required.

Saturday Craft: Seashell Wind Chime
Garvies Point Museum & Preserve
Glen Cove
12–3pm
General admission plus $3 craft fee
Make a beautiful wind chime using seashells.

Saturday and Sunday

Long Island Fleece and Fiber Fair at Hallockville
Hallockville Museum Farm
Riverhead
10:00am - 5:00pm     
$5
This fun event for the whole family features the many facets of working with animal fiber from sheep, llamas, alpacas, and rabbits. Demonstrations will include shearing, wool dying, spinning, sheep herding and many other activities for everyone! Naugles Barn will host the Fiber Market where local artisan vendors will sell supplies and finished products. Food and beverages will be available for purchase, including wine by Martha Clara Vineyard.

Sunday

Kids Fest
300 Long Island
Melville
10:00am - 2:00pm     
Kids can come meet Tommy Ten Pin, get one free game and shoes, free samples of Kids Menu items, plus a few treats from 300 and other local businesses! R.S.V.P. recommended.

Maccabiah Youth Sports Day
Manorhaven Park     
Port  Washington
12:00pm - 4:00pm  
Free  
Recreational games and sports for children five years and up, special events for preschoolers, a live DJ, barbecue, giveaways, and raffles fill the day with activity and community spirit for every age group.

Bug Bonanza
Long Island Children's Museum
Garden City
12:00pm - 4:00pmFree with museum admissionDiscover the amazing lives and natural history of insects, spiders and other creepy crawly creatures. Learn about bug anatomy and fascinating insects that help make up three-quarters of all animals on Earth. Create fun insect crafts, participate in activity challenges and even enjoy a tasty treat made with edible insects!

Good Bug/Bad Bug
Long Island Children's Museum 
Garden City
12:30pm
Free with museum admission
Follow an entomologist as he leads you on an entertaining and educational expedition through the world of bugs. Find out what makes a bug good or bad, helpful or dangerous. Explore the fascinating world of various insects including subterranean termites, carpenter ants, black widow spiders and more. Tickets are limited and can be obtained at the LICM box office on a first-come, first-served basis.

Raptors & S'mores
Theodore Roosevelt Sanctuary and Audubon Center  
Oyster Bay
1:00pm - 2:30pm
$10 per person
Come meet the raptors that call the Sanctuary home and learn about the natural history of these majestic birds. Stick around and make a tasty s'mores treat around the campfire.