Do I Need A Rental Car? The short answer is: yes, you definitely need a rental car when you are visiting Kauai. Public transportation is very limited across the island and ride-hailing services like Uber and Lyft are only reliable around the Lihue airport. You should not expect to have any kind of regular service by Uber or Lyft while in the Koloa/Poipu area. In my personal experience, scheduling these...