News
First guide to freediving for underwater photography released

Glass and Water: The Essential Guide to Freediving for Underwater Photography by Mark Harris is the first book on underwater photography for freedivers. With contributions from expert underwater photographers this book teaches the skills, knowledge and equipment necessary to successfully pursue underwater photography without scuba gear.
Glass and Water is not a replacement for existing books on underwater photography as it focuses on freediving techniques, equipment and photo opportunities which are better suited to freediving (rather than scuba).
“It’s most unlikely that you’ll come away without learning something brand new and innovative. I know that I did.” – Martin Edge
In ‘Part 1: Equipment and Basics’, Mark shows how by choosing or adapting freediving and photographic equipment some early hurdles can be avoided. He also explains some underwater photography basics and opportunities for freedivers.
‘Part 2: Technique’ explains how using appropriate freediving techniques can increase the length of time available for taking photographs underwater and help to manage camera equipment.
And in ‘Part 3: Perspectives’ Mark and a range of informed contributors reveal how to photograph particular animals and their personal approaches to freediving photography. This includes the author’s ‘Virtual Dive’ which pulls together everything covered in the book.
The book includes photos and/or contributions from Fred Buyle, Sue Flood, Danny Kessler, Dr Anne-Marie Kitchen-Wheeler, Laura Storm, Andrew Sutton, and Shane Wasik. There is also a Foreword by multi-award-winning underwater photographer Dan Bolt and a Glossary of key terms.
“Glass and Water should be as essential as a pair of fins and a camera for underwater photographers. Mark shares his tremendous expertise … the methodical and well-illustrated techniques will benefit anyone wishing to produce great images in the sea.” – Brian Skerry, National Geographic
Mark Harris is a former British champion freediver who has instructed, coached and judged at international level, consulted on and taught students how to freedive for roles in both television and film and ran London’s main club, London Freediving for almost a decade.
Available now in paperback for £16.95 (ebook forthcoming) from Divedup.com, online and from retailers.
ISBN 978-1-909455-10-8 | 192 pages (including 100+ colour photos and illustrations) | 210 x 148mm
Gear Reviews
Gear Review: Stahlsac Abyss Duffel Bag (Watch Video)

In a video created exclusively for Scubaverse.com, Jeff Goodman reviews the 75 Litre Abyss Duffel Bag from Stahlsac.
For more information about Stahlsac bags, visit www.stahlsac.com/dive-bags.
Sea & Sea is the home of Stahlsac and other leading diving brands in the UK.
Marine Life & Conservation
Raising Awareness for Scuttle the Cuttle – A Global First in Tackling Microplastic Pollution

Addressing the global crisis of ocean plastic pollution, a new innovation is turning the tide—by placing real-world environmental action in the hands of children. Scuttle the Cuttle, a microplastic-collecting tool designed specifically for young users, has been launched as a practical and inspiring way to involve families in beach cleanups.
Crafted entirely from recycled ocean plastic, Scuttle is a cuttlefish-shaped combination of bucket and sieve. Its engaging design, sustainability credentials, and focus on education make it more than just a toy—it’s a tool for change.
Designed for Impact
Scuttle’s core purpose is to help remove microplastics—plastic particles smaller than 5mm—from beaches. With a mesh size of 2.8mm, Scuttle can collect small plastic fragments and nurdles before they degrade further. This addresses a critical but often overlooked part of the plastic pollution problem.
Built for Young Eco-Heroes
Scuttle is ergonomically designed for both children and adults. Lightweight, durable, and easy to carry, it allows even the youngest users to contribute meaningfully to beach cleanups. Its approachable design turns environmental action into a fun and empowering activity for children and families.
Circular by Design
From production to end-of-life, Scuttle reflects a strong commitment to the circular economy. Made from 100% recycled ocean plastic and fully recyclable, it is manufactured with long-term use in mind. The product not only removes waste from the environment but also repurposes existing waste in its construction, reducing environmental impact across its lifecycle.
Community and Collaboration
In addition to its environmental function, Scuttle is part of a broader movement to build awareness and encourage local partnerships. It supports responsible sourcing, local collaborations, and community-driven conservation efforts.
Scuttle is now available for purchase and is positioned as the first product of its kind focused specifically on the collection of microplastics through kid-friendly, hands-on cleanup.
For more information about Scuttle the Cuttle, visit odysseyinnovation.com/pages/scuttle.
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