1,300 kilometres around an island where every hour of driving looks different.
Route 1 loops the whole island and connects nearly everything most visitors want to see: waterfalls, black beaches, a glacier lagoon, fjords, and the geothermal north. Because it's a loop, you never backtrack, which makes it one of the most efficient road trips anywhere.
The mistake is doing it in five days. That's technically possible and means six hours of driving daily with no time to stop. Eight days is the honest minimum, and ten is comfortable.
The Ring Road is the trip where sharing the car changes everything: four people in one 4×4 makes Iceland affordable. Agree the driving rotation and a fuel kitty before you leave the airport, and keep the nightly bookings on one shared plan — reception is patchy and you'll need to know tonight's address without a signal.