Avatar: The Last Airbender

Water. Earth. Fire. Air. Long ago, the four nations lived together in harmony. Then, everything changed when the Fire Nation attacked. Only the Avatar, master of all four elements, could stop them, but when the world needed him most, he vanished.

You are looking for Sokka of the Southern Water Tribe. He is at the Northern Air Temple and has a clue that will help you find Avatar Aang.

This is part of a series of five caches in Riverside Park - the last one being a mystery cache - dedicated to 'Avatar: The Last Airbender' a Nickelodian kids cartoon from 2005-2008 that was recently put up on Netflix. Find all four traditional caches to collect the clues that will lead you to the mystery cache. 

Congratulations to StrattonRob for getting the FTF