Sam Wallace spills all the behind-the-scenes secrets of 'Celebrity Treasure Island' that you don't see on TV

The final of Celebrity Treasure Island is drawing closer!

And with just three episodes left Sam Wallace – who made it into the final five alongside Shane Cameron, Athena Angelou, Gary Freeman and former Kahu teammate Shannon Ryan – he decided to spill all the behind the scenes secrets.

He shared all the inside information about what life was really like on the island, including whether or not they had legitimate toilets, what connection they had with the outside world and what really happened when someone got eliminated.

He also opened up on his emotional call home to his partner Sarah and if she knew he would be getting to call.

Watch above to hear all the crazy ins and outs of Celebrity Treasure Island.

Celebrity Treasure Island continues Sunday night at 7pm on TVNZ2.