Swimming

Difficulty Class

DC 15 Strength

While you're swimming, each foot of movement costs 1 extra foot (2 extra feet in Difficult Terrain). You ignore this extra cost if you have a Swim Speed and use it to swim. At the GM's option, moving any distance in rough water might require a successful DC 15 Strength (Athletics) check.

Swim Speed

A Swim Speed can be used to swim without expending the extra movement normally associated with swimming. See also "Swimming" and "Speed."