Wearable electronic devices comprised primarily of swim goggles and also featuring a light emitting diode (LED) display, a GPS receiver and a controller comprising software for providing navigational data to a user via the LED display; swim goggles; software for use with a GPS receiver to provide navigational data, namely, visual cues to assist a user in following or maintaining a desired course or racecourse; GPS navigation devices; electronic downloadable maps for computers; computer software platforms for use in navigating an aquatic course or racecourse; computer software platforms for use with GPS-enabled wearable electronic devices comprising software for providing navigational data to a user, the wearable electronic device further storing navigational data for subsequent access and analysis via the computer software platforms; computer software platforms for use in providing navigational data, namely, visual cues to assist a user in following or maintaining a desired course or racecourse for use with mobile electronic devices, namely, smartphones, tablet computers, GPS units, and laptop computers