There are many sandy caves to be found off the road, through the forest and down a track. These small 2-4m coral sand beaches will be yours alone. The ocean water is incredibly crystal clear. The climate is cooler and dryer than Samoa. Niue is also upscale in prosperity compared to other Polynesian islands, as reflected in the prices here.
Most people have small trucks or cars, which make the hitching very easy.
Niueans are very honest and friendly. As they pass by, they always wave. Several guesthouses, small motels and a hotel offer accommodation. I would recommend Koloi Guest House. Clean, quiet, fully equipped house, cost 35 New Zealand dollar for a double.