Will my one year old have a good time? Is there a changing station on board?

Not sure about changing station and your one year old may like watching the paddle turn and splash the water. Its about a 45 min ride they run up the river turn around and come back. Personally It may not be the right thing for a one year old its more educational for adults

I just had my 1 year old Granddaughter on it Sunday and she enjoyed herself! I don't know about the changing station as we changed her on a bench quick before we went aboard. And we also rode the train and carousel!