Please do not go to the posted coordinates, unless you want to get wet, there is noting for you to find except water!
You will need to solve the following puzzle in order to obtain the final coordinates.
10 11 20 31 10 20 21 10 11 20 20 21 10 31 20 21 20 11 10 20 21 20 11 10 20 11 10 31 10 20 21 10 11 20 20 21 40 20 21 20 21
10 11 10 11 10 31 20 21 30 11 20 21 20 11 10 20 21 20 11 10 20 21 20 21 20 21 10 31 20 11 10 31 10 20 21 20 11 10 20 31 20 11 20 21 10 11 10 11