Wiki - Environmentalist
Part 1: Slaying the Poachers
Geoffrey The Environmentalist is in distress! A camp of poachers is rounding up tigers to the west and he wants them dealt with. Kill 20 Tiger Poachers and return to Geoffrey to progress the quest.
Part 2: Perfect Bananas
With the poachers out of the way for the time being, Geoffrey has another task for you. Now he's asking you to travel to the Great Ape Cave and return with 20 perfect bananas. Accomplish this and return to him to receive a reward. Available rewards can be seen in Geoffrey's tent.