I find the hints very helpful in these exercises, and my experience is that the equivalent listening dictations in the French course provide many more hints. The only hint given here is, "Tierra del Feugo". The words with which I was unfamiliar in this exercise were: recorrer; atraversar; bosques; and inolvidable. I was able to sound them out and look them up in the Collins Spanish/English dictionary. I was also unsure of the correct spelling for equipo and ciclismo. I knew the word, "entrenar" only because it is so close to the French, "s'entrainer", and again was able to sound it out.
This is a bit humbling for me to admit to my lack of knowledge of these vocabulary words, but it would be a big help to have them provided as hints to look up as we go through the exercise. Then, at least, we would know the spelling and would be able to look them up in the dictionary.
Saludos!