WDWNEWVBIE - I think the riverboat ride would be interesting and just long enough for an 8 year old. Savannah is beautiful but I don't think the riverboat ride would necessarly be anymore interesting than a boat ride anywhere else you might travel. Historic Savannah is picturesque and the streets are lined with the mossy oak trees that one pictures when thinking of the old South. The riverfront is lined with shops and restaurants that occupy the old cotton warehouses. The riverboat ride is nice but you also travel along an area of the riverfront that is more industrial and modern than the central part of the city. Hope this helps. Have a great vacation!