You'd be stupid to go across the stepping stones if you didn't have the power to jump from one to the other, pretty big, but the, so are the distances between them and at that time of the year the river was pretty high too and r rather boisterous, so it wouldn't be very pleasant if you had fallen in, but you've got to have that but you've also got to have stamina as you said, but it wouldn't have been any fun if you'd got halfway across and  your stamina had run out, then fire brigade called out, the fire brigade or something .