Probably. But the river is moving quick, even in the parts where it looks like on the surface it isn’t. It’s tough to explain, but it’s some sort of illusion your brain plays on you when you’re looking for the slowest moving water you can. The slowest moving spots on the Lehigh are still pushing good. You’d have to gauge how much it would carry you downstream. And if you miss, walking the bank on the Lehigh in the Gorge isn’t a whole lot of fun. I’d have a PFD on. And I consider myself a good swimmer. Our swim team coach in HS coincidentally was also the PE instructor. We did swimming for a whole quarter of the year for PE. He asked me to join the swim team - I was committed to a different Winter sport and couldn’t, but for reference. The Lehigh regular guys (if they see this) will probably tell you the same, or worse.
Edit: I don’t remember what the water right at the mouth looked like, but the time I tried to cross on foot, I attempted to cross just upstream of the mouth in what I thought was the calmest water I could find, in reasonable distance to Bear’s mouth. I thought it was a relatively slow flowing tailout and it was, for the Lehigh. At 200 cfs (super low) it was capable of dumping me at knee depth, and maybe 1/3 of the way across. The push was like nothing else I’ve fished of similar size in PA. I’m 6’0 185. I turned back. So you’d be swimming in knee deep fast flowing boulder strewn tannic water on a whitewater rafting river.
