I am sorry to be a bit late to this thread, but I just came across it. My buddy and I did a full circumnavigation and exploration of the three lobes of the Boreas Ponds in the course of an afternoon during the third week of August last year. We parked in the Four Corners parking lot, which can accommodate 15 vehicles. Each parking spot is marked, and overflow parking is strictly prohibited, per the signage. There was only one other vehicle in the lot the day we were there. The Four Corners Parking lot is 6 miles on the gravel Gulf Road from the junction with Blue Ridge Road.
From the Four Corners parking lot, it is an easy 0.80-mile carry along a gated gravel road to the put-in on Boreas Pond. About 0.1 miles from the put-in, there is a smaller, designated parking lot with capacity for six vehicles, two of which are for handicap use only. From what I understand, a special permit is required to access this parking area, but I do not know how to obtain one.
The 0.8-mile carry from the Four Corner Parking lot was relatively flat, with a few easy grades. My buddy used a cart to wheel his 12-foot Hornbeck, and I carried my 13-foot Placid Boatworks Spitfire with a yoke held in place with a bungee cord. We are both in our 70's, and it took about 20 minutes.
As far as camping goes, there was a leanto not too far from the put-in. We did not check it out. The sign at the put-in indicated that camping was not permitted there. Primitive camping is allowed per the NYDEC 150-foot rule from trails, water, and roads, I believe. There were also many designated camping spots along Gulf Road.
I would rank the Boreas Ponds as one of the most spectacular paddles among the many great paddling spots in the Adirondacks. There are so many interesting features, including remnants of giant pines and other trees that died off when the dam raised the water level. We saw otter latrines, lots of loons and other waterfowl and birds, lots of interesting vegetation and flora, a spectacular glacial erratic sticking out of the water, all set in the backdrop of stunning views of the High Peaks.
Boreas Ponds are worth the extra effort it takes to get there.
Start of the 0.8-mile carry from the Four Corners Parking lot to the ponds.
View from the dam at the launch site.

My Placid Boatworks Spitfire 13 with yoke and bungee attachment system.

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