I'm checking into the Yangtze River cruise, going upstream,Yichang to Chongqing in June. Is there a side (left or right) of the boat with more spectacular views? I read somewhere that at that time of year the northside (don't really know if that means left or right) of the ship was in shade; so that may be a determining factor when choosing a cabin. I'm thinking that the boat sails from town to town during the night. Thanks for any reply.