transmitter sites spread around the globe made up the system, which required the cooperation of six other nations. Omega’s fix accuracy was somewhere between one and two nautical miles.

Invest in a local SIM card or a portable Wi-Fi device. Use GPS to navigate and stay on marked paths. Let someone know your ...

Business Insider spoke with expert navigator Tristan Gooley, author of "How To Read Water: Clues & Patterns from Puddles to the Sea", about how to navigate and find your way just by using puddles.