Free download xkcd Make-Out Spot APK for Android, PC. Latest version is 1.2, update at May 17, 2016
xkcd Make-Out Spot version 1.2 is only one variant.
Randall Munroe's xkcd #201 suggests "Let's take our latitude & longitude, put our birthdays after the decimal points, then go to that spot and make out." Clearly, the world needs...