Unlike the Territory facet, which indicates the country you were in when you created the content, keywords, titles, and descriptions should describe what you can see in the content. Make sure to add the continent, country, province/state, city, and the specific location when it’s relevant and accurate.
Don't add multiple locations to your metadata unless there are multiple locations depicted. A place cannot be the Maldives and the Caribbean, the Arctic and Antarctica, Europe and North America, etc.
Assets with no visible location context (like studio portraits, still life, etc.) should not have location keywords.