The problem with that is, you might think that you've reached the "most top place of the temple" but if you had, you would have gotten the memory. So it would help of you tell us here something more about where you got to, exactly, so we can tell you if you're at the top or not, since we've been there.
If you used the spinning gears to reach a bubble at the top of the Sun Temple you've done it right. Just swim up. If you didn't...well do that. Hop from gear to gear in the right sequence and remember, you can't hang upside down from a gear.