We purchased our tickets for the pub crawl from the Muri beach internet cafe. And the minibus showed up at 8pm on a Friday night to ferry us around to the varous clubs and bars.
The minibus was packed and we all got to know each other quite well by having to sit on people's laps to fit everyone in. Predictably, the drunken singing started off right away and only increased as the night continued.
The pub crawl took in 7 pub/clubs, which is probably most of the ones on Rarotonga. They ranged from quiet local hangouts like the Fisherman, to definate tourist places like Ronnies - a karaoke bar where boys and girls are encouraged to get up on the tables and attempt island dancing. This is best done completely trashed as there's no point hanging on to your dignity. And you'll appreciate watching the boys' hilarious attempts even more.
The night finished at the Staircase - with those cheesey classic hits to groove to. This being Rarotonga the club closes at 2 am, but there's always the beach if you want to (and can) continue the party.