swamp

Meet up with Luna Lovegood and after a quick chat,you'll need to get the box down from way up high,so set up a bench and climb on up. Repair part of the roof using Reparo,cast Reducto on the "X" where the tower appears and then use Wingardium Leviosa to move the swamp box down to ground level.Climb down,move the swamp box on top of the "X" (once again,use Wingardium Leviosa) and either fire off an Incendio or Reducto spell to set it off.You may just need to move a different bench.Or maybe it's in the right place already.You have to be infront of part of the wall you can climb,it has a greenish plant or moss on it.

yes i kno on this part you have to move the bench but the bench doesnt move it stays by the wall the only thing i can move is this big rock

OK.. for the PSP version.. ignore Luna... the bench does not move at first and there is nothing to repair. THere is a broken pillar on the right side of the court yard, near the bench with loads of vines hanging from it... get the rock by the tree (WL) put it next to the broken pillar (not connected to other pillars) you can climb up to the top of this pillar.
THen you can WL the bench and bridge the gap between
the pillar and the rest of the roof... walk towards the entrance and you will see the triangular swamp thing... WL it to ground level... get down, WL swamp to center of court yard then move away and set it off using repulso .. you'll know if you put it in the right place you won't be able to set it off if you didn't.