Moonwalker's page

Thank you both for your answers!

I was suspecting the same at first but this explicitly refers to the DC only, not to other Balance rules.

In all of these cases, the DC is modified by the same environmental circumstances that apply to the balance task of Acrobatics (see page 135).

Athletes who chose Acrobatics at 1st level can move at full speed while balancing and do not fall prone on a failed attempt to tumble through an opponent’s square.

What does the quote refer to? There is no rule which says one would fall prone on a failed attempt to tumble through an opponent’s square under the Tumble rules in the Core Rulebook, page 136.