Congratulations, you made it to the final tunnel of the day! Here's your answer:
According to our highly scientific and utterly useless calculations, it's:
100 feet
Don't just take our word for it, check out the tunnel length extravaganza to learn more!
Want to try another question? Head back to the main tunnel and start digging!
Or, if you're feeling particularly adventurous, try the mystery tunnel, where the answers are always shrouded in uncertainty!