How do you get out of the tunnel on 24 carrot island?

Answer 1

The tunnel runs from the water to the factory floor. Pick up the Carrot Transporter and get past the trap doors and the rat, and turn on the power to the factory. (Switches : down, halfway down, down)

Answer 2

In the drain pipe for the Carrot Cake Factory, simply climb into the pipe the loops upward, and crawl out past the rat. On the factory floor, you can reach the vent system, but you will need the Blueprint from the window near the roof of the factory. Do not go in without it.

Answer 3

For the farmhouse, the same way you got in. Click on the fireplace.

For the Carrot Cake Factory, you have the Carrot Transporter to use anytime you want to leave. You will have to re-enter the factory through the sewer entrance.