S --- Someone should always paddle with you; someone should always know your paddle plans.
A --- Approved personal flotation devices (PFD), properly fitted, are essential.
F --- For health and safety, have on board plenty of drinking water and appropriate medical and first aid supplies.
E --- Exceeding safe river levels, paddling in high water or bad weather conditions is never good idea.
T --- Tethering yourself to a craft is dangerous and not advised.
Y --- You have control of your destiny while on the river. Use this privilege wisely.