The bush is on a rock on the right segment of the falls, and you can't get into the cave behind it until you help the woman cross the falls with her animals. (Chicken first, then feed but BRING BACK the chicken. Then fox, and then chicken again.)
There are TWO caves on Nabooti Island. One is hidden behind a bush at the Blue Nile Falls, and the other is at the top of the Mountains of the Moon. (see related questions)
Its behind the giant bush on the right hand side of the falls.
in a bush
Find the bush that is on a rock in the right side of the falls. Go behind it to find the cave that has the Purple Jewel.
Once you get the animals across the falls, you can go to the small bush, on a rock to the right side of the falls. Behind it is the cave with the Purple Jewel.
Go to the right and look up, there should be lots of rocks and a river. Then on one of the rock parts, there is a bush, that bush is where you click, then your in the cave.
Nabooti is an island on Poptropica.
You have to first help the ladie by helping her put the things to the other side by putting the feed and the chicken but bring the chicken back and get the wolf then get the chicken the woman will tell you the cave is behind that platform with the bush.
The hidden cave at Blue Nile Falls is behind a bush on the far right. You have to beat the puzzle of crossing the falls with the animals before you can enter the cave. The Purple Jewel is inside. (see related question)
the man tells you that there is a hidden cave behind a bush to the right
The three traders are all at Nabooti, where you first arrive on the island.
it leaves nabooti island