Bat Cave conquered by a 5-year-old boy

Today we went to Údolí Říčka again with my son to conquer another cave. The weather was pleasant, slightly overcast. We left the car at the Hádek bus stop. We changed clothes before the cave, I mainly checked the flashlights and took the carbon dioxide detector in my pocket. In these types of caves, there may not be enough oxygen at the bottom and the oxide is very dangerous, especially if you have a small son with you, when the path…