I will be in Yichang for a couple days. Our group is two 12 year olds and 2 older adults.

Well, since you are Chinese, the trip will be much easier. In the city, you can visit several; top attractions like the Three Gorges Dam, Sanxia Renjia and Qinglong Gorge. You can rent a car. And the best way to experience the landscape of Yangtze River is to take the deluxe cruise from YC to Chongqing. You may give it a try.