Long Island Greenbelt Trail South is a 9 mile moderately trafficked out and back trail located near Islip Terrace, New York that features a river and is good for all skill levels. The trail is primarily used for hiking, walking, nature trips, and bird watching and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Length9.0 miElevation gain78 ftRoute typeOut & back
Dogs on leashHikingNature tripsWalkingBird watchingForestRiverViewsWildflowers
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Reviews (48)
Photos (105)
Activities (45)
Completed (102)
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Alicia Miller
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this place is not dog friendly !

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Debra Gaines
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Hiking
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Vera Ronning
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Hiking
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Debra Gaines
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Hiking
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Clara Y
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RunningBlowdownMuddyOver grown
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declan Kirby
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Hiking
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Jimmy Xing
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Hiking
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Batman _
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Backpacking
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Kathi Bertos
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Hiking

Some if the trai was very well marked but some was not. it caused a lot of confusion and took away from our ability to pay attention to the absolutely beautiful scenery.

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Debra Gaines
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Hiking
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Zachary Hoerning
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Hiking

45lbs Ruck with the doggo

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Eric Donald
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Hiking
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Matt Nuccio
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Hiking
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Christine Finn
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Hiking

Heckscher to Connetquot. Gorgeous hike though a diverse trail. Beginning was a little tricky as far as finding the blazes goes but easy once out of Heckscher area. Did 6 miles in 2.5 hours at a leisurely pace. Most dangerous part was crossing Montauk Hwy and Union. I didn’t mind hiking along the highway. Don’t think I would bring kids, dogs sure since it’s super flat. Once the leaves change I bet it will be gorgeous! Hike starts off on the beach in the sun, then pretty much in the shade the rest of the way except for a quick section or two. It was the right choice to start off early (8am) so I could be in the shade for the hotter part of the day. Would definitely hike again! Going to try and complete the rest of the green belt.

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Jack Conner
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Hiking

Beautiful trail, blazes were a little iffy in Hecksher portion of trail. Very little mud, really enjoying the Greenbelt !

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Paige Ponzeka
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HikingBugs
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Laetitia Yafai
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HikingBugs

We only did a small portion of the hike and ended up aborting the mission closely after the Heckscher State Park Campgrounds because of the mosquitoes and the ticks. The views are really nice by the water but were honestly ruined by the swarms of mosquitoes and the numerous ticks we found crawling on our legs. We counted more than 30 mosquito bites on one of my husband's legs. We weren't prepared for this, so definitely make sure that you do, so you don't have to turn around like us!

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Cristina P
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Hiking

Trail head starts at field 7 by the parking lot exit sign near the beach. We totally missed it and walked the road into some round about way, but it was really beautiful. Just be careful, total mileage was almost 12 miles. Best part was under Sunrise highway! Must see!

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Sean Smith
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Running

Awesome trail! Very peaceful. Did a trail run/hike this morning here for the first time, and it was great. Started at Heckscher field 7 parking lot where Greenbelt Trail sign is and did the out and back to where Connetquot River park starts just after going under Sunrise. FYI out and back is longer than article here indicates, my GPS said 11.3 miles. Lots of diverse sections with one of my favorite sections being a woodchip path through some tall pines. Follow the white trail blazes and you'll be fine, the only tricky parts to navigate I found were the road crossings (the first one being the least clear), otherwise the others were clear. Was really fun to run - pretty, narrow, cool winding sections, flat, and not much pavement with exception of some road crossings and a little in Heckscher. I used some spray, wore long pants w/ high socks, stayed near center of trail, and gave a thorough tick check afterwards with no ticks found fortunately. I can see it getting pretty buggy (fly-wise) in the first section near the water and along the swampy area. No elevation gains here like the north end in Sunken Meadow, but that's expected! As mentioned previously, there was not much traffic at all.

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Kimberly Thiemann
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HikingBugs

The trail is really pretty and the couple of times I’ve been there, I was the only one on the trail, so it’s nice if you’re looking for a lightly trafficked trail. The only downfall is there are SO many ticks. Even after dousing myself in tick repellent (several times) and staying on the marked trail, every so often I would check myself and have to flick a bunch of ticks off my shoes/lower legs. I know ticks come with the territory of hiking, but I couldn’t believe how many I kept finding on myself despite using repellent and staying on the trail.

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Matthew Matthew DeMasi
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Hiking
First to Review

Well-marked trail except early on at Hecksher st. park. There were nice changes in scenery from bay/beach to different types of forest. Highlight of the hike was crossing under Sunrise Hwy/rt. 27 on suspended catwalk.

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maria toth
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Hiking
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Peter Boyle
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Hiking
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James Gribbin
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Hiking
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Michael Wright
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Hiking
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David S.
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Hiking
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Stacy Williams
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Hiking
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Traci Seltenright
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Hiking
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Showing results 1 - 28 of 48