At this time, I started to built e-commerce project. I am new to SEO and never dealing with it before. I've been read some article about SEO and made me feel confused about avoiding duplicate content caused by URL path. I do not want to redesign my application in the future too much, as it will take extra time to rebuild the application. So, I put my question here.
In my application, I have a travel package. Each package can be accessed via 2 or more different categories. The URL structure looks like this:
Airport Transfer / Direction / Packages Zone / Region / Packages Activity / Region / Packages
As I know, the structure will make Google think that I have duplicate content on my sites. How to avoid that? Should I only follow and index one of them? Thanks.