in the Hudson Riv valley has a place in my world also(alongwith touring and whitewater).
Another suggestion: When you have a specific flatwater paddle in mind, post it here in advance with a date and time. (My own experience is, that this works much better than posting any kind of grouping.)
With enough heads-up, I might be available for a particular outing, and can sometimes convince two or three other paddlers(in rec yaks and canoe)to join the fun.
Creeks and rivers preferred: Walkill, Rondout, Fishkill, Esopus, Wappinger, Ten Mile--All good.
Have boats, will travel--Bob.