This section of Assassin's Creed: Odyssey walkthrough includes the information of tombs located in Paros. Below, you can find the exact location of the boards at the end of each tomb and the list of weapons you can acquire.
Tomb location: Northern part of Paros.
Walkthrough: Enter the tomb and continue along the path. Turn left and continue forward until you reach bricked up the wall at the end of the chamber. Hit it hard to smash it.
Upon reaching another chamber you will be attacked by snakes. Prepare to kill them and throw the torch at them immediately, to use both hands and keep the area well lit.
Continue forward to reach a wooden shelf. You have to move it. Behind it, you will find a room with the board. Activate it to complete this tomb.
When exploring this tomb you will also find the Skinning Knife with good stats and also the noteworthy Gilded Staff.