The small island home to the Zandalar Trolls. Yojamba Isle is located in the northwestern corner of Stranglethorn Vale, near the border with Westfall and northwest of the Haunted Isle and The Vile Reef. This is the primary location for information, quests and rewards related to Zul'Gurub.
From here, one may receive quests to go into Zul'Gurub and get certain items. When these items are in your possession and you have high enough reputation, you may turn in the quest for rewards. Also, at friendly reputation, you may receive, free of charge, a necklace from your class master on the island (the one who gives the class-specific quests). return to the class master at each new reputation level for an upgrade to the necklace. There is also a vendor that sells crafting profession recipes, but you must have 300 skill and the correct reputation to use them. And, finally, some of the components in the quests (bijous and tribal coins) can be turned in for bonus reputation instead of used in the quests. Take bijous to the altar on the island and right click them. They will be destroyed and you will gain a good amount of reputation. Turn in coins in predetermined groups of 3 outside the altar for extra reputation.