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For Divers since 1975 The Private, Exclusive Guide for Serious Divers Since 1975 |
"Best of the Web: scuba tips no other source dares to publish" -- Forbes |
Mantas Go to Great DepthsContents of this Issue: A Regulator Attached Backward to a Tank Explore Vava'u, AX-Factor Dive, Tonga Whale Rescue Encapsulated in Award-winning Photo Captain Ahab, Eat Your Heart Out A Diver's Preventable Death in the Azores Many Rubber Boats Have No Ladder Fellow Student Shares Child's Training Death Story Solmar V: Canceled Trips, No Refunds What? Another Liveaboard Fire? Editorial Office: Ben Davison Publisher and Editor Undercurrent 3020 Bridgeway, Suite 102 Sausalito, CA 94965 from the January, 2026 issue of Undercurrent
Subscriber Content Preview When you are lucky enough to see giant oceanic manta rays glide past you, you may not give much thought to where they're heading next, but it could be down to 4000 feet. Scientists believe they travel to such depth to pick up signals about their location by sensing changes in the Earth's magnetic field, and data about the oxygen, temperature, and light levels. In deeper waters, these clues can be more stable and predictable than at the surface.... Subscribers: Read the full article here ; |
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