Getting to the Northern group islands is the biggest challenge. Manihiki and Penrhyn are five to six hours flying time from Rarotonga and the air fares are horrendously expensive. There are also occassional flights to Pukapuka, but they really are few and far between. The other islands in the north are accessible only by boat with services described as "very occasional". But the determined traveller will be rewarded with an unforgettable experience of unspoiled paradise.