Yes all the cabanas come with a hammock, chairs/table and loungers. They have a bunch of drinks in the fridge and you get your own "server" who will bring you more drinks and snacks as you need them as well as towels and anything else you may want.
You can also go get your own if you want to, everything at DC is included in the price so you don't pay for anything else.
We particularly like the Cabanas by the Aviary, they are very secluded and a bit more private than the ones closer to the dolphin areas.