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Our checkout dive was easy, with a maximum depth of 75 feet for 50 minutes. The current was slight, and the visibility was spectacular — an ideal first dive. It closed with a nice, slow ascent and a three-minute safety stop. When we returned to the boat, I felt a sudden tingling in my right foot followed by a dull ache in my knee. I assumed the worst, thinking I had decompression sickness (DCS). When I reviewed the dive in my mind, however, that seemed impossible.
After reading the Shooter column “Cristina Mittermeier: Commitment to Conservation,” view this additional photo gallery of her work.
With nearly 16,000 miles of rugged coastline and more than 40,000 islands and islets, British Columbia’s Howe Sound features fantastic marine life and spectacular coldwater scuba adventures. Stretching 27 miles from its narrow head under lofty mountain peaks at Squamish to its wide-mouth opening into the Strait of Georgia just northwest of Vancouver, Howe Sound is North America’s southernmost fjord. This sea-to-sky corridor crafted by glaciers and perfected by time seems tailor-made for subsea exploration — reef and wreck, rec and tech.
Underwater photographers usually evolve a specialty, but the first fork in their road typically involves defining an interest in either photographing natural history — marine life in particular — or concentrating on editorial and commercial work that inevitably involves photographing people underwater. Photos of charismatic marine life help tell the story of a dive destination or might be used for photo décor or stock photography. Compositions that illustrate people interacting with marine life bridge both disciplines and combine each approach’s rewards and challenges.
Crocodiles are apex predators, and in the wrong place and time, humans are potential prey. There are exceptions, but most of these wonderful and primitive reptiles won’t squander encountering a potential meal. When swimming in any reptile habitat, know who and what you may encounter, or don’t swim at all. The resident American crocodiles at Jardines de la Reina routinely share their waters with snorkelers and divers, but Jen Hayes didn’t feel the same comfort working in Nile crocodile waters in Botswana.
The U.S. currently has 14 national marine sanctuaries and two marine national monuments, and each has its own unique story. In preserving these irreplaceable resources, the sanctuaries protect who we are at our base — our soul as a nation. They reaffirm us and connect us to our incredible heritage.
Pengguna harus mengoperasikan silinder dalam parameter desain, seperti mengisi hanya pada tekanan servis terukur dan memiliki silinder yang diperiksa oleh teknisi yang terlatih dan berkualifikasi secara formal dan memenuhi syarat oleh fasilitas pengujian yang memiliki reputasi baik dan diakui. Lebih dari 90 persen kerusakan terjadi selama pengisian, sehingga pemeriksaan yang rajin selama proses ini sangat penting. Silinder harus beroperasi dengan aman selama masa pakai jika pengguna mematuhi desain dan kondisi pengoperasian.
La Paz, on Mexico’s Baja California Peninsula, has always been connected to the sea, from its indigenous pre-Columbian people and a history of sea explorers, pearl divers and fishers to a modern destination attracting ocean-inspired tourists to interact with the abundant marine treasures of this region.
Most decorator crabs belong to one of eight families in the superfamily Majoidea, commonly referred to as spider crabs. About 75 percent of the group’s more than 1,100 global species mask their presence by wearing disguises made from living organisms scissored from the landscape. They commonly hijack seaweeds, sponges, tunicates, bryozoans and hydroids. The crabs manipulate the purloined pieces of attire with their mouths before attaching them to one of the many fishhook-shaped bristles arranged in rows on the carapace, rostrum, walking legs and claw arms, depending on the species.