The streamlined shape of the whale helps to reduce the water resistance allowing the Sub-Island to move around the ocean with ease. It is also shaped like a whale such that it helps to blend in with the marine life to move freely in the ocean without scaring away the marine life.
The tunnel is an underwater tunnel to connect with the main island so that people and robot fishes can return to the main island. Once the tunnel is closed, the sub-island can move freely to explore and help to carry out missions.
The robot fishes will be released by the sub-islands into the ocean. The fishes contain enzymes that help to reduce the plastic wastes and it would be store inside the fish and transported back to the sub-island. The sub-island then takes the plastic wastes and decomposes it into fertilizers which will be transported to the main island to be used for the plantation.
Solar Panels will be placed at the sides of the main-island and would be used as the main power source instead of diesel or petrol to prevent air pollution which may cause damage to the growth of life in the eco system created.