Hey @Godlike0207!
Yeah, you’re going to have to do a navmesh for this! That’s okay though, it’s super easy.
Just bring one in from the side bar and resize it to cover the entire area that you’d be navigating. You can hit the “P” Key to show the navmesh, make sure where you want to walk is covered with green! 
Get back with us once you’ve done that! Here’s the documentation if you’re curious to get further into it: