As I know, the charge to watch the Guilin Fantastic Show is CNY150 and the Impression San Jie Liu is CNY120. The cost to visit the Two Rivers & Four Lakes is more than CNY100.

Then is it worth to go for the show?
Is it nice?

Hi Ms Hui Ling,
You were telling that there's some optional tour available, is it from Malaysia travel agency? If so, do you mind to recommend me as i'm planning to visit GUI LIN this October.

Thanks

Day 1 : Kuala Lumpur - Guilin

- Yu Hill Park(虞山公园)

Day 2 : Guilin - YangShuo

- lake Cruise of Lijiang River [view of Elephant Trunk Hill (象鼻山), Fu Bo Hill (伏波山), The Fighting Hill (斗鸡山） & etc (十大名山).]
- southeast of Guilin City - YangShuo by coach. En-route will view the “Moon Hill” (月亮山）.
- West Street(洋人街/西街）

Day 3 : Yang Shuo - Guilin

- Rong Lake (榕杉湖) Scenic Area is located in the center of Guilin.
- Jiuqu Bridge (九曲桥).
- South Gates (古南门) and Gold & Silver Tower (金银双塔).
- Zhenyang Gate Walking Street (正阳步行街) for shopping.

Day 4 : Guilin - Kuala Lumpur

- free & easy.

Compared with these 2 optional tours, I strongly recommend you to take the B choice, for Guilin Fantastic Show is not so famous and catching fish show and passed by two river & four lake are for free.
BTW,most of your itinerary arranged by the tour agency is ticket free. What a pity! Yu Hill Park is not worth seeing.