Here is an opportunity for advanced legal studies on Children's Rights, through the University of Leiden in the Netherlands (non-Dutch persons are invited to apply) 

The Master of Laws: Advanced Studies in International Children’s Rights is a one of a kind program, offering an advanced master (LL.M) dedicated to the rights and interests of children from a legal perspective.  Today – more than 25 years after the adoption of the United Nations Convention on the Rights of the Child – the role of international, regional and domestic systems in issues of child protection, participation and empowerment is ever-growing, and requires in-depth specialization.  This programme offers advanced specialist knowledge and practical skills required to effectively protect the rights of children worldwide.  The language of instruction is English.

You can see here for more info:  http://en.mastersinleiden.nl/programmes/international-childrens-rights/en/introduction