Čertovo and Černé jezero, Černá strž waterfall

You can go on a trip from Špičák near Železná ruda, either as a circuit or perhaps take the train and adjust the route slightly. The route could also be handled with a stroller, only the rocky and steeper section to the Black Lake should be handled by the child alone, handling even an empty stroller would probably be so-so.
We followed the tourist signs from Špičák to Čertov and Černý jezer and then followed the cross-country route back to Špičák.