Vientiane Cave has always been the place to expect, not far from the city, the ticket includes the bus fee, go up to climb a mountain, now there are new holes, there are not many development in the new cave, but the lights are very beautiful, the old cave according to the driver master said that the season is different The distance is different, because there will be symptoms of oxygen deficiency. The lights inside are very beautiful, you can see all colors of stalactites, there will be mud inside, it is recommended to travel shoes.