All 30 castaways are marooned in the islands of the Maldives. (Random.org) has split them into 5 tribes of 6 names after the various atolls of the island nation. they are:
RASHDU Tribe (YELLOW)
Colleen Haskell (Survivor Borneo)
Rob Mariano (Survivor 4,8,20 & 22)
Melissa McNulty (Withdrew before Fiji started)
Russell Hantz (Survivor 19, 20 & 22)
Jane Bright (Survivor Nicaragua)
Richard Hatch (Survivor 1 & 8)