Moving through a Square
Opponent: You can’t move through a square occupied by an opponent, unless the opponent is helpless. You can move through a square occupied by a helpless opponent without penalty. (Some creatures, particularly very large ones, may present an obstacle even when helpless. In such cases, each square you move through counts as 2 squares.)
Spring Attack said:When using the attack action with a melee weapon, you can move both before and after the attack, provided that your total distance moved is not greater than your speed
Tumble said:. Tumbling is part of movement, so a Tumble check is part of a move action.
Altamont Ravenard said:You can't Tumble while Spring Attacking.
Spring Attack said:Benefit: When using the attack action with a melee weapon, you can move both before and after the attack, provided that your total distance moved is not greater than your speed