Students can apply for Aquimob international mobility fellowships (around 400-450 EUR per month), which combine mobility help provided by the French Research and High Education Office, the Aquitaine local government (Conseil Régional d’Aquitaine) and Erasmus support.
http://www.aquimob.fr

Students can also apply for competitive IdEx “Destinations prioritaires (Japan, Canada, California, Bask Country)” mobility fellowships (around 650 EUR per month, they cannot be held concurrently with an Aquimob fellowship).
Application opens in September (see the Master coordinators at that time).