Limpus has spent 50 years dedicated to sea turtle conservation in Queensland, Australia.

Blue Planet II executive producer James Honeyborne brought serious conservation issues to light with the BBC series and introduced the underwater world to millions with never-before-seen footage.

Monterey Bay Aquarium Volunteer Marv Tuttle was honored as a Sea Hero by Scuba Diving magazine and Seiko watches for his work introducing scuba diving to children with disabilities.

Gemma Smith, a groundbreaking tec diver and instructor, is honored as a Sea Hero for her underwater accomplishments.

Jim Ritterhoff helps ex-military divers find a new purpose through Force Blue, earning him Sea Hero honors by Scuba Diving and Seiko.

Shark conservationist Randall Arauz is named the May 2019 Sea Hero by Scuba Diving magazine and Seiko Watches.

Marine biologists Christy and Brice Semmens earned Sea Hero honors from *Scuba Diving* magazine for their work with the Grouper Moon Project.

The Semmens are the first of six nominees to be announced for Scuba Diving’s 2019 Sea Hero Awards.

Scuba Diving magazine and Seiko Watches name Ken Stewart the 2018 Sea Hero of the Year for his work with Diving With a Purpose and the National Association of Black Scuba Divers.