How do you get the peace medeal

The peace medal is hanging under the deck in the time of the Leonardo da vinci dude. To get there, climb up the cloud-like stones and go right until you see these wooden decks. Jump over the hole to the other side first and then go onto the tiny platform. Once it goes down, climb up the other decks and go on the other tiny platform there. Once it slides down, jump onto the deck where you started and then try to get onto the third tiny platform which now should be between the two separated decks. This might take a while, but keep trying and once you're on it jump forward and down a little bit sou you can reach the medal under the deck.