Welcome to KOA 1000 Islands Campground

We’re still accepting reservations for 2017!

Take advantage of the lowest gas prices in years, travel to the island for your getaway!


Island Camping

  • Located in beautiful Henderson Harbor, NY USA
  • Previous Olympic sailing training center
  • GE executive retreat converted into your retreat
  • Campground sites located literally a mile into eastern Lake Ontario.

RV Campground Sites

  • 300 RV Campground Sites
  • 70 RV Campground Sites on the water
  • RV rally & RV caravan groups are welcome

Tent Camping

  • Limited tent campgrounds
  • New camp sites open in 2013 and 2014


Our beautiful Olympic Marina:

  • has a deep basin with top-of-the-line floating docks
  • has ideal access to Henderson Bay and Lake Ontario
  • is well-protected from storm surges
  • have our own boat launch


  • Premium, 1000 Island NY, Lake-front cabins
  • 2 Bedrooms
  • Private bathroom with shower
  • Kitchen


Our fabulous water views overlooking Henderson Bay provides a naturally romantic ambiance – perfect for entertaining and celebrating with guests.

KOA 1000 Islands at Association Island


Truly a unique destination campground and marina designed specifically for RVing and boating enthusiasts, as well as cottage vacationers. Our beautiful island is located in the scenic 1000 Islands Region, on the eastern shores of Lake Ontario in northern New York State, in the quaint town of Henderson Harbor. We have 300 RV Sites with over 70 RV sites right on the water, a limited number of new Tent sites, a gorgeous Marina and Boat Launch, and 5 beautiful Lake-front Sunset Cottages. When you drive over our bridge and cross a 1300 feet-long causeway, you’ll know you are somewhere truly special! The resort is situated on an island with 65 acres, a well-protected marina, picturesque shoreline, breath-taking lake views, and spectacular sunsets. Our island enjoys a refreshing breeze throughout the summer, for cooling off as you just relax “away from it all” or for great sailing. In its rich history, Association Island hosted numerous sailing & wind-surfing contests and was once the training center for the US Olympic Sailing Team as they prepared for the 1976 Montreal Olympics.


Thousand Islands


Enjoy our many recreational activities both on-site and in the local Thousand Islands region. The waters surrounding Association Island are abundant with walleye, salmon, trout, perch, pike, bass, and numerous other fish species. Either fish from our shores, from your own boat, or book one of the local charter captains to take you out for a memorable trophy fishing experience. Local folklore says that National Geographic rated the eastern shores of Lake Ontario as one of the top 10 areas in the world for viewing gorgeous sunsets. Our customers are fascinated as they watch the sky light up with every shade of pink to vibrant oranges and reds radiating across the horizon. You can only experience koa 1000 Islands Campground at Association Island by seeing it for yourself. Our island paradise is truly one of a kind. So come visit us and see what island recreation is all about!

1000 Islands Recreation Map

What People Say About Us


Absolutely beautiful It was September and I would suggest staying on the east side and walking to the west side to see the sunset. The wind coming off the lake made it quite chilly that late in the year and the east side would be much warmer.


Being the last weekend of the year every activity and rentals were all pretty well closed but we had perfect weather and extreme quietness. Will DEFINITELY be returning next year hopefully numerous times. Clean site and installations…Big Thumbs Up. Cheers


We stayed here in a motorhome. Very nice campground. Our campsite was just a few feet from and facing Lake Ontario. We stayed for three days and loved the environment. The staff was very friendly and accommodating. The only downer was that there were no restaurants nearby that were open during the week in October. I would highly recommend this campground