Talk about reuse: In 2008, Marcus Eriksen and Joel Paschal drifted from California to Hawaii on a raft made of 15,000 plastic bottles. Their mission was to educate about marine pollution and the need to reduce single-use plastics.

On Wednesday at the Royal Hawaiian Hotel, Eriksen will discuss his new book “Junk Raft”and premiere his documentary of the same name.

“Marcus helped publicize the Great Pacific Garbage Patch and has become one of the leaders of the international plastic pollution movement,” said Stuart Coleman of Surfrider Foundation and BooksAndSpirits.com, which organized the evening with the Better Tomorrow Speaker Series of the University of Hawaii at Manoa.

The free event, with cash bar, light pupu and books for purchase and signing, will be from 7:30-9 p.m. in the resort’s Monarch Ballroom; preregistration is required at marcuseriksenseries.eventbrite.com.