Having a car in St. Croix is the most effective way to get around the island. There are no ride sharing services, only taxis that can be quite costly.
The most important thing to know is that on St. Croix, we drive on the LEFT! Unlike some of you that have driven in Europe, the cars are American so the steering wheel is on the side that you're used to.
Car Rental Agencies
Judi of Croix http://www.judiofcroix.com/p/welcome-home-to-st-croix.html
Budget (at airport) https://www.budgetstcroix.com/
Centerline (at airport) https://stxrentalcar.com/
Olympic https://www.olympicstcroix.com/
Hertz (at airport) https://www.rentacarstcroix.com/