You can get a major boost to your CV, if the person has done voluntary work abroad, and there’s lots of opportunities available. Volunteering abroad, is a good experience niche, not only for the language study but also for adding volanteering work to your CV. Many of those schemes involve helping those who are less privileged and this gives a new outlook on the future working life of those involved. It is a rich experience that can only add to life.
Find overseas volunteering opportunities by running an internet search for opportunities and you will find many possible options that give you a wide choice.