If you are looking for safe, Guyana is not it. I don’t know the violence stats but they are very very high. You should do a lot of research before you go. I have traveled in numerous countries in Europe, Asia, and the Caribbean. I lived in Guyana for 8 months, Georgetown. It has been the only place I have been nervous to live. I have spent time in Bangkok and Phnom Phen and I felt much safer there. But Guyana has some of the nicest people I have met in my travels as well. So you need to do your research.
Good luck.