Hi, just moved to NYC from upstate and I don't like to sail alone. Is there a whatsup group / facebook or something similar of active sailors? Couldn't find any online. Thanks!

I live in NYC, but do all of my wingfoiling in the Peconic Bay.

I don't know of any groups specifically tailoring to the city, but you can find the following related groups on Facebook. Sadly none are particularly active.

www.facebook.com/groups/HudsonRiverWindsurfers/
Long Island Wind Sports
www.facebook.com/groups/280981808685136/
LI ACTIVE Windsurfers
www.facebook.com/groups/349474753223383/
Sandy Hook Kite Surfers
www.facebook.com/groups/268663416586648

I'd also to be happy to find other local groups...

There are a few wingfoilers at Plum Beach. Mostly Kiters there but there's a few WFers.