Well, if you were to tunnel through the center of the earth from Bristol you would end up with a wet welcome on the other side - the Indian Ocean, southwest of Perth Australia.
Not so surprising as the Indian is the third largest ocean covering approximately 20% of the Earth's surface - so you had a 1 in 5 chance of ending there.
Now the million dollar question: would you end up feet first or head first? Ponder that one for awhile.