Mabuiag and Darnley Islands in the Torres Straits were always fun and games!
Mabuiag was about 400 - 450m, grass (think it's sealed now) with the ocean at either ends.
Darnley, 450 -500m long and 400' drop offs to ocean below at either ends! Rough as guts when the wind was blowing.
Murray, Boigu and Saibai Islands used to be interesting after heavy rain too!