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Free Events and Things to do in Central Islip, NY

Search for something you love or check out popular events in your area.

Almost full
3rd Annual Trunk or Treat
Sunday at 1:00 PM
Lake Ronkonkoma · Amber Court on the Lake
Almost full
3rd Annual Trunk or Treat
Sunday at 1:00 PM
Lake Ronkonkoma · Amber Court on the Lake
Selling fast
Ribbon Cutting Ceremony for Kings Park
Tue, Nov 10, 4:30 PM
Kings Park · The Cornerstone Kings Park
Selling fast
Ribbon Cutting Ceremony for Kings Park
Tue, Nov 10, 4:30 PM
Kings Park · The Cornerstone Kings Park
Join the Conversation: What’s Next for the Economy?
Tue, Nov 10, 7:00 PM
Stony Brook · Charles B. Wang Center
Join the Conversation: What’s Next for the Economy?
Tue, Nov 10, 7:00 PM
Stony Brook · Charles B. Wang Center
Almost full
Stew Leonard's Trick or Treat
Tuesday at 4:00 PM
Farmingdale · Stew Leonards
Almost full
Stew Leonard's Trick or Treat
Tuesday at 4:00 PM
Farmingdale · Stew Leonards
Sales end soon
2nd Annual Mopar & More Car Show
Saturday at 10:00 AM
Commack · Huntington Ram Service & Parts
Sales end soon
2nd Annual Mopar & More Car Show
Saturday at 10:00 AM
Commack · Huntington Ram Service & Parts
Selling fast
Coltrane at 100: The Coltrane Legacy
Sat, Nov 14, 3:00 PM
Dix Hills · Half Hollow Hills Community Library
Selling fast
Coltrane at 100: The Coltrane Legacy
Sat, Nov 14, 3:00 PM
Dix Hills · Half Hollow Hills Community Library
Celebrating Transplant and Cellular Therapy: Past, Present & Future (2026)
Tue, Nov 3, 6:00 PM
Woodbury · Crest Hollow Country Club
Celebrating Transplant and Cellular Therapy: Past, Present & Future (2026)
Tue, Nov 3, 6:00 PM
Woodbury · Crest Hollow Country Club
Sales end soon
NYSF Spooky Happenings Market
Saturday at 12:00 PM
Deer Park · 759 Long Island Ave
Sales end soon
NYSF Spooky Happenings Market
Saturday at 12:00 PM
Deer Park · 759 Long Island Ave
Almost full
Off the Bay & Out of the. Coffin
Saturday at 9:00 PM
Sayville · Off The Bay
Almost full
Off the Bay & Out of the. Coffin
Saturday at 9:00 PM
Sayville · Off The Bay
Almost full
Heal Your Relationship with Money Holiday Edition
Wed, Nov 11, 6:30 PM
Babylon · 122 W Main St
Almost full
Heal Your Relationship with Money Holiday Edition
Wed, Nov 11, 6:30 PM
Babylon · 122 W Main St
Sphere of Influence and Past Client Marketing Mastery
Wed, Oct 28, 3:00 PM
Melville · 40 Marcus Dr suite 250
Sphere of Influence and Past Client Marketing Mastery
Wed, Oct 28, 3:00 PM
Melville · 40 Marcus Dr suite 250
Herald Senior Health and Beyond Expo: Commack
Sun, Nov 22, 9:00 AM
Commack · SYJCC
Herald Senior Health and Beyond Expo: Commack
Sun, Nov 22, 9:00 AM
Commack · SYJCC
Sales end soon
SL:54 COMMACK GRAND OPENING
Sunday at 1:00 PM
Commack · 1141 Jericho Tpke
Sales end soon
SL:54 COMMACK GRAND OPENING
Sunday at 1:00 PM
Commack · 1141 Jericho Tpke
Almost full
Hunt for Bigfoot 2: Electric Boogaloo, Adult Program, $4 upon arrival
Sat, Oct 31, 10:30 AM
Kings Park · Sunken Meadow State Park Lot 3
Almost full
Hunt for Bigfoot 2: Electric Boogaloo, Adult Program, $4 upon arrival
Sat, Oct 31, 10:30 AM
Kings Park · Sunken Meadow State Park Lot 3
Sales end soon
Secrets of the Boulevard: Kings Park State Hospital – Main Hospital Tour
Saturday at 10:00 AM
Kings Park · Nissequogue River State Park
Sales end soon
Secrets of the Boulevard: Kings Park State Hospital – Main Hospital Tour
Saturday at 10:00 AM
Kings Park · Nissequogue River State Park
Trunk or Treat
Fri, Oct 30, 4:00 PM
East Northport · The Learning Experience - East Northport
Trunk or Treat
Fri, Oct 30, 4:00 PM
East Northport · The Learning Experience - East Northport
Selling fast
Halloween Splash or Treat at Saf-T-Swim Commack
Saturday at 3:30 PM
Commack · Saf-T-Swim of Commack
Selling fast
Halloween Splash or Treat at Saf-T-Swim Commack
Saturday at 3:30 PM
Commack · Saf-T-Swim of Commack
Reformed and Reforming: Retired Clergy Gathering
Thu, Nov 5, 9:00 AM
Deer Park · Ascension Lutheran Church, Deer Park
Reformed and Reforming: Retired Clergy Gathering
Thu, Nov 5, 9:00 AM
Deer Park · Ascension Lutheran Church, Deer Park
Almost full
Secrets of the Woodlands: Forest and Field trail Exploration
Saturday at 1:00 PM
Kings Park · Charles & Helen Reichert Administration Building, Nissequogue River State Park
Almost full
Secrets of the Woodlands: Forest and Field trail Exploration
Saturday at 1:00 PM
Kings Park · Charles & Helen Reichert Administration Building, Nissequogue River State Park
Sales end soon
Drop-off and PaintShare™ Giveaway - Farmingdale State College
Saturday at 8:00 AM + 7 more
Farmingdale · Farmingdale State College
Sales end soon
Drop-off and PaintShare™ Giveaway - Farmingdale State College
Saturday at 8:00 AM + 7 more
Farmingdale · Farmingdale State College

Trends in Central Islip

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Frequently asked questions about Central Islip

What are the best free events to attend?

According to Eventbrite, the best free events are:

3rd Annual Trunk or Treat

Ribbon Cutting Ceremony for Kings Park

Join the Conversation: What’s Next for the Economy?

Stew Leonard's Trick or Treat

Which events are currently trending in Central Islip?

The trending searches this month in Central Islip are:

community baby shower

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Drop-off and PaintShare™ Giveaway - Farmingdale State College

2nd Annual Mopar & More Car Show

Secrets of the Boulevard: Kings Park State Hospital – Main Hospital Tour

NYSF Spooky Happenings Market