Cant find 2 balloons

[Aneasia]

I am 2 baloons short for the quest 2 inside the quidditch pitch the marker is leading me close to the ground but I dont see them.

[Hemp]

There are 2 just outside the walls. 1 close to ground and another high seat level.

[Aneasia]

Thank you I found them.

[Infern]

Press the reveal button while on your flying broom. You can see them through walls.