People came and went most days, with their fishing lines and their canoes, and in summer children paddled by in little boats, or on rubber tubes. "I wish I could go for a sail on the river," said George. "Me, too," said Georgina. But their mother did NOT want her children messing about in boats. "It's too dangerous," she said, "the current is strong, and you are too small and weak to row yourselves out of danger."