You can get worms at captree boat basin in tackle shop
Closest bait n tackle shop is in bay shore main st...there are none near the causeway or may b Babylon
Bait and tackle shops before you get there. You can't use earth worms for salt water. You need blood worms
It all depends on where you're coming from. You can buy them at your pet store or at a fishing store. This would be your best bet. Good luck fishing.
I know by Ronkonkoma Lake, depending on where you coming in from. Didn't see any at the beach itself, but before you cross bridge there are shops.
Thanks! Your answer is awaiting moderation.