It's a small island. RSSC sets them up for lunch, drinks, kayaking, beach chairs, etc. The full-day motu off Ta'haa on the 7 day PG trips is awesome. This included the floating bar out in the lagoon. There's a second motu day off Bora Bora. On the PG, it was not as comprehensive as the Ta'haa motu. I didn't visit it so can't give you a comparison.

Hope that helps! Cheers, Anne