NUVHS course while traveling

I am a junior in California. I want to boost my GPA by taking a course over the summer from NUVHS, basically taking one of the courses listed at https://www.nuvhs.org/assets/resources/pageResources/NUVHS17_6273_Course_Approval_this_oneChart_UpdateFIN2.pdf

It says in the course that discussions are “asynchronous” and, barring a couple of days here and there, I will be able to be online a lot. Has anyone else taken a course on NUVHS before while they were traveling internationally? I have to be out of the country for about 3 weeks in the summer but am in otherwise.