Has anyone done the cruise (8 days from Chongqing to Shanghai) with children (5 years old and 3 years old)? Is the boat child friendly at all? or they are going to get bored, or worse - fall into the river! by looking at the photos border around the ship seems quite low...we will be travelling as a family of 2 adults and 2 kids. Also wondering if they have bigger room so we can all stay together, i.e. king size bed a single. Thanks