Arctic greenpools are teeming with life; Sharks know where they are going; Where are the great hammerheads heading; Network is key for corals too; Aquatic plant traps prey in an instant; Gray whale tracked across Pacific; Alvin gets a makeover; World's oldest Heidsieck champagne and beer found in shipwreck; Leaking fuel -- a big problem by Rob Rondeau; HMS Hermes now open for divers; Intact German WWI u-boat found off Ireland; 20th century shipwreck in NOAA's Stellwagen Bank Sanctuary listed in National Registry of Historical Places; Queensland tourism receives AU$10 million; Thailand temperarily closes popular dive sites; Panama offers free medical insurance for tourists; Egypt travel bans lifted.

Go on a tour of the Cayman Islands with Cathy Church, renown underwater photographer, pioneer, author and advocate of the seas, who shows us her favorite dive sites and wreck sites of Grand Cayman Island, Cayman Brac and Little Cayman. Read about Inner Space 2011, the world's largest closed circuit rebreather event to take place on Grand Cayman Island in May. Well-known dive guide author, underwater photographer and Cayman resident, Lawson Wood, gives us an indepth look at his favorite haunts on Grand Cayman Island, Cayman Brac and Little Cayman as well as a photo exposé of the sinking of the USS Kittiwake, the newest artificial reef of the Caribbean.

Get the latest equipment news from Kent Tooling, Oceanic, Fourth Element, SI Tech, Miflex, Hollis, Cathx Ocean, AP Valves, O'Three, Manta Industries, Pegasus, Underwater Technologies, Light and Motion, Seac Sub, Technology Indepth, and Bare Sports. Tech guru Mark Powell talks team diving. Get the scoop on the new TEKCamp 2011 in the UK with ten top tech trainers. Aaron Gekowski covers the shark finning crisis in Mozambique and the documentary film, Shiver.

View a collection of fine oceanic design inspired by the sea for house and home as well as the latest dive books and media. Don Silcock gives us an up close and personal look at the mystical haven of Halmahera in the Maluku Islands of Indonesia. Bonnie McKenna brings us the current news in sea turtle conservation.

Kelly LaClaire brings us the current news in whale and dolphin conservation and ecology. Keri Wilk discusses snoots in underwater photography with additional images by Alex Mustard. Don Silcock gives us the latest in underwater photography equipment from Ikelite, Sea & Sea, Equinox, Fantasea, Canon and Amphibico. Artist Sayaka Kajita Ganz on her wondrous fish sculptures made of reused plastic and metal objects.