Coastal boat classes recognised by FISA
Solo (C1x) 
Double (C2x) 
Coxed Quadruple Sculls (C4x+) 
Coxed Four (C4+)

 

World Rowing Coastal Championships boat classes
Men (M) C1x, C2x, C4x+ or C4+
Women  (W)  C1x, C2x, C4x+ or C4+