When it's cold enough, the lakes in southern Germany develop a thick layer of ice that is good all sorts of winter pastimes. Cettina talks about the history of ice-skating and interviews an ice hockey enthusiast.

Andy takes us out on the ice to try to determine how deep it is, and then explains the difference between different types of ice skates.

Nico gives us some information about his background, but is interrupted when Lisa brings some good news.

Beer and frisbee, frisbee and beer: a classic combination for fun in the sun! Do the winners get to drink more, or are the losers forced to drink more? Does anybody really care? Viel Spaß!

The weather in Mainz was perfect for the celebration of Rosenmontag with a huge parade, which people came from all over the region and the country to see.

The Hochstetten football club sings the German folk song "Wir lagen vor Madagaskar" about a doomed group of sailors.

The town of Hausach gets its own ski jump, and both professional and local playmobile ski enthusiasts are eager to try it out.

How do Martin and Michael fare on the ski jump? And what other events are taking place in the playmobile town of Hausach? Watch this video to find out.

Various residents of Hausach compete with aircraft they have constructed themselves. Who will win?

So where is Yara? Lisa's father asks Nico and Yara's friends a series of questions. Then they find some evidence that Yara might be in Switzerland. But why?

We see how Yara got a phone call two weeks ago that led to her unexpectedly flying to Switzerland.

Unable to figure out whom Yara would've gone to visit in Switzerland, the group decides the best thing to do is to wait for her return.

The guys get ready to play soccer, taking inventory of their equipment and food. Nico doesn't have soccer shoes, but is able to borrow some.

Nico asks Tarek how often he and his friends get to play soccer together. It seems that they are all quite busy, but still manage to stay in pretty good shape.

The guys might not be the good players that they claimed to be, or perhaps they are just out of practice? They debate what the key is to staying in shape.