I was unsure at first about your suggestion but since then, Ive looked up the film version of Sienkiewicz's novel and you're right, that's precisely what I remember. It's strange because I always thought it was set in modern times (1960s/1970s at that time) but it seems it was set in the 19th century. There was also a remake done more recently it seems; it's all here on IMDB. Thanks to everyone who helped solve this mystery for me.
In Britain this was called "Desert Adventure" but the Polish title is "W pustyni i w puszcsy" (Through Desert and Wilderness).

I as Czech don't remember something like that made in our country, it really looks like "Through Desert and Rainforest" by H. Sienkiewicz as marmota-b 've written.

Yes, that's exactly what I meant. I didn't remember the Polish name.

Try this link: http://us.imdb.com/board/10070894/

I have never heard about such series, but it reminds me on one children book written by Henryk Sienkiewicz. I think it could be called "Through Desert and Rainforest" in English (actually, I only translated the Czech name of it).

What do you remember about this series?.Id like to see if it tallies with my memories. Do you remember the name of it?

It reminds me of a German series

Zlatovlaska is also very often shown on Christmas on Czech TV, but is not so popular as "S certy nejsou zerty".
The TV series you are talking about might be really some kind of co-production of several "Iron Curtain" countries. It might help if you remembered some names of actors or places mentioned in the TV series.