Islands 1, 2 and 3 are locations that appeared in "Power of Three".
Island one appears to be a white sand beach devoid of anything but "30 or so" safes. The island is connected to the mainland with a balance beam. The contents of the safes (aside from the paddles and rafts needed for island) consist of:
- A teddy bear
- A baseball bat
- An egg
- A non-sentient flower
- A cap
- A basketball
- A ball
- A tire
- Pencil (temporarily)
Island 2 is a rocky beach and appears to be similar to Island 1 in terms of size. This time, there are 10 keys on top of 10 poles, with 5 keys being fake. There are also an indeterminate number of brightly colored green, red and yellow building blocks used to climb these poles.
Island 3 appears to be entirely artificial and the smallest of the 3 islands. The only things present are a rectangular room with a locked door, a hidden spring, and a trash can outside for depositing fake keys.
Challenges on each island
"On Island One there are thirty or so safes. Each of the safe's combo is written on its bottom. Five of the safes have the rafts and paddles that teams will need in order to get to Island Two."
"Island Two has ten keys hanging from poles. Teams will climb up building blocks to snatch a key and move on."
"On Island 3 there's a building with a locked door. The key that the team snatched from Island Two might unlock the door. However, only five of the ten keys unlock the door. If the key doesn't work, the team must go back and snatch another key."