This page is about the narrow gauge railroad at Piaseczno: and the tourist train rides that are offered there.
To begin, here is a video that shows highlights of a typical train ride on the Piaseczno narrow gauge railway.

The railroad is located a short distance outside of Warsaw. For your convenience, there is a map hello.
The railroad is extremely well run. The staff is helpful, courteous and treats every person as a welcome guests. They go out of their way to make sure that every person enjoys themselves thoroughly.
We recommend them highly.
You get to enjoy a two-hour stay at a picnic area. Bring your own food and drink or by what ever you need their there is plenty of food and drink ready for you to enjoy.
The train schedule and ticket office online is here – The Piaseczno Narrow Gauge Railroad Site
The information in that site is in Polish. Open it in Google Chrome and it will be translated for you.