# The Big Blue Bag > Ocean conservation citizen-science project tackling marine plastic pollution through community beach sampling, education, and reusable collection bags. The Big Blue Bag is a UK-based ocean conservation initiative. We provide reusable bags and a citizen-science app that lets volunteers record beach-clean data, contributing to global research on marine plastic pollution. The site shares our mission, protocol films, gallery, news, newsletters, and shop. ## Pages - [Home](/): Mission overview, hero film, and how to get involved. - [About](/about): Our story, team, and approach to ocean conservation. - [Our App](/our-app): The citizen-science sampling app for recording beach-clean data. - [Protocol Films](/protocol-films): Step-by-step films showing how to run a sampling session. - [Gallery](/gallery): Photos from beach cleans and community events. - [Testimonials](/testimonials): Words from volunteers, partners, and supporters. - [News & Reports](/news-and-reports): Project updates, research findings, and press. - [Newsletters](/newsletters): Downloadable PDF newsletters from the project. - [Shop](/shop): Reusable Big Blue Bags and supporter merchandise. - [Contact](/contact): Get in touch with the team. - [Ocean Plastic Recycling Guide](/ocean-plastic-recycling-guide): Long-form guide to the lifecycle of marine plastic and reusable cleanup bags.