Replacement for SATNAV in extreme conditions?

Where a satnav doesn’t survive you need another solution, very cool idea.

https://www.splash-maps.com/petrol-head-maps/

 

 

Maybe a little more relevant to us in GB…

https://www.ordnancesurvey.co.uk/business-and-government/partners/finder/splashmaps.html

Yes, looks cool, might also work for rallys and treasure hunts as you can create your own!