Deck chairs, flip flops, tents, fishing line, rotten bait and disposable coffee cups were all found on Mauao on Valentine's Day last year.
This year the clean-up is happening again and organiser Julia Graham hopes more than 100 people will turn up on the day to help.
The Love Mauao Valentine's Rubbish Clean-Up will take place on Sunday, February 12 from 9.30am.
Ms Graham said last year volunteers collected more than 80 rubbish bags full of rubbish.
The event was organised for this time of year because the tourists had generally been and gone for the summer.