The Cook Islands is an island nation in the Pacific Ocean. It consists of 15 islands.
Rarotonga
Quite possibly the easiest place in the world to hitch! The whole island is a 50km zone :D
Super easy to hitch, even at night time. Mostly you don't need to wait more than 2 minutes. Usually the first car with spare seats stops. If you carry a helmet you can even get picked up by scooters!
Do not get the 10-ride bus ticket, it is way faster to get a lift from someone than waiting for the bus, and you get to meet more locals hitching.
Carry a stick and some stones in your pockets though, most of the dogs are all bark but the bad ones bite.