there were long stretches of smooth-worn rock running for miles, exactly fitted to make seal-nurseries, and there were play-grounds of hard sand sloping inland behind them, and there were rollers for seals to dance in, and long grass to roll in, and sand dunes to climb up and down, and, best of all, kotick knew by the feel of the water, which never deceives a true sea catch, that no men had ever come there.