Sailboat Docking in Fire Island, NY

[Joe500]

Has anyone taken a sailboat into the bay at Fire Island? Can someone recommend a place to dock or anchor there where it is fairly deep? I once went to Atlantique and found a municipal dock there that allows non-residents when it's not busy. But it took me two nervous hours of motoring to get there and at least one grounding in sand. I also saw an anchorage right off the left side of the channel after passing through fire island inlet but being anchored so close to the channel on a busy day didn't seem too pleasant. Are there any marinas closer to Fire Island inlet that are deep enough for a sailboat? My boat has about a 5 foot draft and I don't want it bouncing up and down and hitting the bottom on every wave that comes around.