Uji is just a short distance from Kyoto, is is certainly one of the loveliest tourist spots in Japan. It's most significant claim to fame is Byodo-in, which is featured on the 5 yen coin. I liked the museum at Byodo-in better than the famous Hall of the Phoenix. (Incidentally I think the best places for photographing the Hall of the Phoenix are from outside the enclosure.) Uji is also rich in history, its wooden bridge the scene of a famous ancient battle, and having ties to Murasaki Shikibu who wrote The Tale of Genji (almost certainly the world's first novel.) The tourist boats along the river are for shag fishing in summer, and there is a popular fireworks festival held every year in August. If you go to Uji you must sample green tea or green tea products like matcha ice-cream, because Uji is also a famous tea growing area. If you have the time to hike upriver to Amagasaki dam you will be rewarded with some stunning river scenery.