there is a long beach made flat and smooth by the tides and we gallop along it , tossing up sand , and comrade even goes into the water and i squeal at the spray thrown up by his hooves and i pound on randall 's back and tell him to stop it , my clothes are going to be ruined , and we go back up along the riverbank and randall points out a boathouse that he says has several small boats in it , and i say maybe i 'll teach him to sail if i come back here in the summer and he says i must .