Yes, in order to complete the island you need the camera.
In Nabooti.
At the merchants in Nabooti.
The merchant in Nabooti.
At the top of a palm tree at the Kaya Forests.
You buy a camera at Nabooti to use on the Safari.
In Nabooti island, you have to get the camera to help Big Zeke on the Safari. To get the camera, go to the Kaya Forests where you will find a gold nugget on the top of the palm tree next to the second hut. Swap the nugget for a camera at Nabooti.
Swap the nugget at Nabooti to get a camera for the Safari.
There are 3 traders back in Nabooti.
the camera
You get the camera from the trader at Nabooti. To trade for it, you will need the gold nugget (from the palm tree above the second hut at the Kaya Forests). The camera is used to take pictures of the animals at the Safari. (see related question)
You need a camera to take photos for Big Zeke on the Safari. Get one by collecting the gold nugget from the Kaya Forests. It is in the palm tree next to the second hut. Swap it at Nabooti for the camera.
The "camera in the potted plant" refers to the Headquarters on Spy Island. For Nabooti Island, you have to buy a camera. Go to the Kaya Forests and find the gold nugget in the top of the plam tree (near the second hut). Take it back to Nabooti and trade it for a digital camera, to use on safari.