SWIMMER - Permits swimming at the following speeds:
SL-(sea state)-(ENC/3)" per round,
+(ST(3).max.DX(3).max.2SL/3)" for 1 EN per round,
+(ST(2).max.DX(2).max.SL/3)" for 2nd EN per round,
+(ST(1).max.DX(1))" for 3rd EN per round.
Gamesmaster information omitted.