Swimming

If you have a swim speed, you can use move actions to swim through liquids, but you don’t need to attempt an Athletics check to swim except in hazardous circumstances (see the Athletics skill starting on page 136). You receive a +8 bonus to all Athletics checks to swim, and you can always take 10 while swimming, even if you are distracted or threatened. You can move your full swim speed while swimming, and you can use the run action while swimming, provided that you swim in a straight line. Creatures without a swim speed use the Athletics skill to swim. A swim speed does not automatically impart the ability to breathe underwater.