I think geography is one of those subjects that can be included with some other form of curriculum you’re already doing. Geography can easily be part of a social studies curriculum, for example, and a lot of comprehensive social studies curricula will already include geography as part of the deal. I don’t happen to use one of these with my kids, so I had to get creative to cover geography!
I went to the library to research geography for kids, and I found tons of books on the subject. Then I just sifted through everything and picked out the things I found useful. I also searched online and was so happy to find lots of free resources for kids learning geography, everything from geography games, printable worksheets , to unit studies, and maps for download. So I pieced together a little of this and a little of that and made my own unit study. I think it covers the subject matter just as well as anything I could have purchased.