I volunteer for
Heroes on the Water. We take veterans out kayak fishing for free. One of the most prominent sponsors of this site once came to us and offered to take a bunch of veterans, from the VA hospital, out on his boat. If I recall we had somewhere between 15 and 20. His only condition was that a couple of us came too (no charge) be their mates so it wasn't too much extra burden on the crew. He did it for FREE! It was a very kind gesture and very appreciated.
I think a lot of these sponsors do stuff at varying levels. I know the Mi-Jo tends to put together veteran trips. I don't recall if they were free or discounted. I believe Pete from Atlantic Bait & Tackle teams up with him as well.
Speaking of Pete, he has a forever 15% discount for Veterans when paying with cash.
John C, I'll PM you.