This project, like others, was aimed at taking a special someone to a particular spot so I could propose. It used the following components:

The code takes your current GPS position, sent from the GPS Module. Using that, it calculates how far you are from a pre-programmed location and what direction you need to travel to get there (North, South, etc.). It outputs that information onto the OLED screen and updates every 2 seconds. In this example, it's using a park in Seattle. But you can get the GPS coordinates of wherever you want.