Some photos on this site were taken by other photographers and are used under their licences. Thank you to:
- Diver behind a large sea fan on a coral reef – Open Water Diver: Mares – Alberto Balbi
- Diver with a torch in a deep reef cavern – Deep Diving: Martin Strmiska
- Two divers above the coral at The Islands, Dahab, one with an underwater camera and light: Tim Sheerman-Chase, CC BY 2.0, via Wikimedia Commons
- A diver swims over bright white sand in clear turquoise water: JennyHuang, CC BY 2.0, via Wikimedia Commons
- Two divers hover beside a line in open blue water during a safety stop: Peter Southwood, CC BY-SA 4.0, via Wikimedia Commons
- Diver in a blue mask swimming over sea grass – Advanced Open Water Diver: Aqualung – Greg Lecoeur
- A small group of divers over a Red Sea reef slope while reef fish pass in front: Hannes Grobe/AWI, CC BY 3.0, via Wikimedia Commons
- Diver with a Nitrox tank swimming through a school of fish – Enriched Air Nitrox: AdobeStock – zimagine
- Scuba tanks with chrome valves stand on a jetty, with a beach and green hills behind: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons