3rd Pilot Video Short, How to BodyBoard: Accessories (Rashguard & Fins). Please be advised that this is only a pilot the actual series will contain more in depth information about how to bodyboard and the accessories needed. Bodyboarding Expert Carter G Talks about about the essential accessories for bodyboarding, which are a rashguard and fins. Carter G, explains that a rashguard protects your body and keeps you warm and that fins help you manuever in the water.