Kingdom Hearts hidden treasure?

I hope someone can help me!

At this location (waterway close to the final switch that opens the castle door) there is a treasure box just behind the wall in the left, I don't know how to reach it, I've tried to freeze the bubles (in the other side as well), but :
1) Or I can't reach the frozen buble
2) Or I can't jump from there to the other side.

 

I would try to explain, but I suck at it, so;

 

It is not that one (that one I got), the one I am speaking of is in that room with 5 switchs , on the forth switch there is a buble that leads you to the fifith , from both of them is possible to see the cheast, but not to reach it, I've tried to freeze these bubles as well but I could not reach one of those the other didn't help me.

 

Don't have many ideas then, no game to check it out.
Did you get the one in the room you enter without a bubble, from outside?

 

You must go into the castle, at a certain point (don't remember exactly where), there is an orange switch, and another switch which can change to color between blue and orange, so you can go up or down. Go down, and you will find that switch. Sorry if I didn't explain well, if you don't understand I'll take a screenshot of the place where you have to go. (If I understand what's the place you are trying to reach)