When taking children to play in Pingdingshan on rainy days, you can consider the following three places:

* Pingdingshan Aquarium: This is an aquarium that displays a variety of marine life, including sharks and turtles. Children can observe marine life closely here, increase their knowledge and broaden their horizons. If you have enough time, you can consider staying in Pingdingshan to return to the aquarium at the end of the day, or arrange to continue playing the next day.

* Mozi Ancient Street: This is a historical and cultural block in Lushan County, Pingdingshan City, which combines Ming and Qing style buildings and traditional handicrafts, and children can experience the charm of traditional culture here. If you choose to stay here, you can visit the night view of the ancient street, taste the local food and enjoy an antique night.

* Yaoshan rafting: This is a famous Tianhe rafting scenic spot, which is famous for its clear and transparent water quality and magnificent natural scenery. Children can experience the excitement and fun brought by drifting here. If you choose to stay here, you can continue to explore the natural scenery of Yaoshan and feel the charm of nature the next day.

in terms of transportation, considering the possible road conditions in rainy days, it is suggested to drive or charter to the above three places. This can flexibly adjust the itinerary according to the weather conditions and ensure the safety of children.

Generally speaking, Pingdingshan Aquarium, Mozi Ancient Street and Yaoshan Rafting are all good choices for taking children to play in rainy days. From the itinerary, mode of transportation to accommodation, it can be adjusted according to your actual needs and time schedule. I hope you have a pleasant weekend in Pingdingshan!