Here’s our list of the best things to do on Rarotonga, Cook Islands to help you make the most of your next trip. The entire event goes on for a few hours and is really one of the best things to do in Rarotonga, Cook Islands. Buy Some Cook Islands ArtWhat better souvenir to have from your trip to the Cook Islands than picking up some traditional art? That’s it for our guide on all the great things to do in Rarotonga, Cook Islands. DISCLAIMER: Our Rarotonga travels were made possible thanks to our partnership with Cook Islands Tourism, and our flights to Rarotonga were part of our collaboration with Air New Zealand.