Before I went to Fiji I spent 2 weeks on Rarotonga, the main island of the Cook Islands. Its a great little island. You can buzz around it on a scooter in less than an hour. Is surrounded by reef which makes loads of wicked lagoons full of awesome fish. We explored to whole island in those 2 weeks including a hike right up to the middle and highest point of the island. I even managed a drunken attempt at being a turtle on my way back to the sea!