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Scuba Diving beautiful New Zealand

Scuba Diving beautiful New Zealand

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There are many dive centers in New Zealand as this country is perfectly positioned to see a number of wonderful rugged coastlines covering its two islands of the South and the North.  Dive s... Read more

Scuba Diving the Sha’ab Abu Nuhas Reef in the Red Sea

Scuba Diving the Sha’ab Abu Nuhas Reef in the Red Sea

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Sha’ab Abu Nuhas is a coral reef northwest of Shadwan Island in the northern Red Sea. It is a navigation hazard because it projects into the shipping channel, as evidenced by the (at least) 7 s... Read more

Scuba Diving with the Lionfish: A Great Catch!

Scuba Diving with the Lionfish: A Great Catch!

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The lionfish is one of the most beautiful creatures that divers can behold underwater. It is a fish characterized by spiky fins, and a color combination of striped red, yellow, brown, yellow, or blac... Read more

Scuba Diving in Thailand. The 5 Big Truths

Scuba Diving in Thailand. The 5 Big Truths

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No other country in the world could offer tourists such varied scuba diving sites like Thailand does. From beginners to seasoned divers, the islands of Thailand have so much to offer, with its amazin... Read more

Diving FIJI? Heres some Dive sites around Fiji with great dive site map.

Diving FIJI? Heres some Dive sites around Fiji with great dive site map.

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With our fast custom built dive boats you have access to a wide range of divesites in the Mamanuca group of islands. Generally, there are two very distinctive marine environments. One is a huge lagoo... Read more

Scuba Diving Lombok and Gili Islands off Bali in Indonesia

Scuba Diving Lombok and Gili Islands off Bali in Indonesia

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Lombok is an island located east of Bali and accessible by air, fast boat or public ferry.The simple pleasure of sunshine, white sandy beaches in quieter settings than Bali, unique culture, stunning ... Read more

Scuba Diving off the Island of Crete in Greece

Scuba Diving off the Island of Crete in Greece

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Crete is the largest and most populated island in Greece's Mediterranean link of islands. Its warm waters offer virtually ideal year-round diving conditions. In the winter months of December and Janu... Read more

Scuba Diving around Sharm El Sheikh on the Red Sea

Scuba Diving around Sharm El Sheikh on the Red Sea

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Sharm El Sheikh Local Dives covers all the dive sites north and south of Naama Bay between the straits of Tiran and the town of Sharm El Sheikh. You reach the different local dive sites from Naama Ba... Read more

The Mesoamerican Reef

The Mesoamerican Reef

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The Mesoamerican Reef is the two largest barrier reef in the Atlantic.  The Mesoamerican Reef is so large, diverse, and pristine that it has been called the "jewel" of the Caribbean...and I call... Read more

Scuba Diving in the Maldives

Scuba Diving in the Maldives

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  There are few places on earth that could be described as an ultimate paradise; the Maldives is most certainly one of them. Once you come into land across the Maldives, you'll straight away rea... Read more

Scuba Diving in Fiji.

Scuba Diving in Fiji.

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FIJI diving stats: Great for: Large animals and non-diving activitiesNot so great for: WrecksDepth: 5 - 40mVisibility: 5 - 35mCurrents: Usually gentle but occasionally strongSurface Conditions: Can b... Read more

Dahab International Watersports Festival 14th – 20th April 2012.

Dahab International Watersports Festival 14th – 20th April 2012.

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  The people of Dahab, in South Sinai, Egypt invite you to attend the second Dahab International Festival of Water Sports, Culture and Desert Adventure on the 14th – 20th April 2012. ... Read more

Roatan Island Marine Park and Conservation

Roatan Island Marine Park and Conservation

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The Roatan Marine Park (RMP) is a grass roots, community-based, non-profit organization located on the island of Roatan, 50 kilometers off the mainland coast of Honduras. Our organization was formed... Read more

Enjoying The Waters Of The Northern Red Sea

Enjoying The Waters Of The Northern Red Sea

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The charm of Jordan and its neighboring countries lie in the sand dunes of deserts and the waves of the Red Sea. While many associate Jordan and Middle Eastern countries with vast areas of sand, the... Read more

Coral Bay Diving – The Ningaloo Reef - Australia’s Forgotten Reef

Coral Bay Diving – The Ningaloo Reef - Australia’s Forgotten Reef

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If you’re thinking of heading out to Australia for some of the best scuba diving in the world then you’re probably already thinking of the Great Barrier Reef. However, Western Australia h... Read more

Cave Diving – Tips for the Extreme Scuba Diver

Cave Diving – Tips for the Extreme Scuba Diver

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Cave diving is becoming more popular for many divers, and if you’re looking for an entirely new way of discovering underwater habitats, enjoying cave diving can be thrilling. However, it isn&rs... Read more

Scuba Diving and enjoying Boracay Island in the Philippines

Scuba Diving and enjoying Boracay Island in the Philippines

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Boracay island is a world-class tourist and scuba diving destination in the southern Philippines. It is one of the most popular getaways in the Philippines, attracting close to one million local and ... Read more

Scuba Diving beautiful Palau

Scuba Diving beautiful Palau

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Beautiful Palau is an island in the Pacific Ocean, about 500 miles east of the Philippines. It gained iindependence in 1994, making it one of the youngest nations. The name of Palau itself is relativ... Read more

Shopping and choosing a Dive Computer

Shopping and choosing a Dive Computer

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Since the early 1970s divers have seen their pastime and favorite hobby revolutionized by a series of technological advances. As computers become part of our daily lives, divers have also taken a... Read more

Scuba Diving in Palau – Make the Most of Your Dive Experience

Scuba Diving in Palau – Make the Most of Your Dive Experience

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Palau, located in the Pacific Ocean 500 miles east of the Philippines, is a top spot for divers. Whether you’re very experienced or are a novice looking for new dive resorts and scuba diving ex... Read more

Our divers told us what was important to them when searching online for a dive center or resort.

Our divers told us what was important to them when searching online for a dive center or resort.

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A few weeks ago, we asked our 13,000 Facebook and Twitter divers, followers and members    " What is most important to you when searching online for a dive center, resort or liveaboard... Read more

Scuba Diving and Underwater GeoCaching, becoming more popular.

Scuba Diving and Underwater GeoCaching, becoming more popular.

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Underwater geocaches can be found in the waters of more than a dozen countries, from Indonesia to South Africa to Spain, but "there's just not that many of them out there right now," said Chris Waggo... Read more

Five Best Scuba Diving Spots In The Canary Islands

Five Best Scuba Diving Spots In The Canary Islands

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Dive Holidays come only a few days a year. So if the opportunity presents itself, one should take advantage and plan a getaway to remember. It is particularly enticing to see pristine waters and pow... Read more

Diving the Straits of Tiran off Egypt.

Diving the Straits of Tiran off Egypt.

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The Straits of Tiran The straits are formed by the island of Tiran to the east and the Sinai coastline to the west.  The meeting of deep waters, continental plate, and narrow passage creates a ... Read more

Red Sea Scuba Diving Destination El Gouna - Scuba Diving In El Gouna

Red Sea Scuba Diving Destination El Gouna - Scuba Diving In El Gouna

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El Gouna is a great divers' destination in the Red Sea Riviera. For new divers, heated pools and calm local reefs provide an excellent start to your diving experience. For more experienced divers, El... Read more

Cayman Islands Diving – Grand or Little Scuba Exploration?

Cayman Islands Diving – Grand or Little Scuba Exploration?

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The Cayman Islands, just south of scuba in Cuba, continues to be a vastly popular area of the world to enjoy scuba diving. They offer a huge array of dive sites and exploration opportunities, in addi... Read more

Planning a Dive Vacation

Planning a Dive Vacation

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Becoming a certified scuba diver is the first step in unlocking the door to an amazing world that only a small percentage of the earth's population will ever see. The ocean is the planet's last front... Read more

Scuba Diving at Beqa Lagoon in Fiji

Scuba Diving at Beqa Lagoon in Fiji

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Scuba Diving at the Beqa Lagoon in Fiji is paradise itself. The heart of the unspoiled South Pacific is about as far removed from the hustle and bustle of American or European toil as you could imagi... Read more

Four scuba divers drown in 'Blood Grotto' panic (Italy).

Four scuba divers drown in 'Blood Grotto' panic (Italy).

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  Four scuba divers drowned during a routine dive to a popular underwater cave system in southern Italy went horribly wrong over the weekend, according to the coast guard. The group of divers lost... Read more

Scuba Diving in the Bahamas

Scuba Diving in the Bahamas

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Scuba diving in the Bahamas is one of the world’s most sought after pastimes for thrill seekers fascinated in an underwater world experience that will stay with them for the rest of their live... Read more

Post Dive Flying – Flying Implications After Scuba Diving

Post Dive Flying – Flying Implications After Scuba Diving

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The experience of scuba diving and the variety of dive sites which are spread across the world mean that it is only natural that you’ll probably be flying before and after your trip. Whilst you... Read more

Scuba Diving off the Isle of Man in the Irish Sea

Scuba Diving off the Isle of Man in the Irish Sea

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Located between Britain and Ireland, the Isle of Man offers world-class diving spots rich in diverse marine life and underwater attractions. There are only two ways to reach the island: by ferry or b... Read more

Helicopter Diving – A New Thrill for Scuba Divers

Helicopter Diving – A New Thrill for Scuba Divers

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You may already be fairly convinced that scuba diving is thrilling, with you able to enter a mysterious marine world where life is very different from that of on land. However, if you’re lookin... Read more

Choosing a Scuba Diving Resort or Dive Center

Choosing a Scuba Diving Resort or Dive Center

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When deciding which dive center or location to go scuba diving, you should consider if the resort is well managed and run by experienced CMAS, ITDS and PADI certified instructors, and do local diving... Read more

Top 5 Hurghada Scuba Diving Sites in the Red Sea

Top 5 Hurghada Scuba Diving Sites in the Red Sea

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Egypt remains one of the most popular destinations for scuba diving in the world. With the Red Sea holding a diverse variety of marine life, and water temperatures ranging between 20°C and 27°... Read more

Latest Global Scuba Diving Destination News and information

Worldwide scuba diving community with Scuba Diving Destination information, Scuba articles, Dive News and Dive stories.

Feb 27
2013

What is a Buoyancy Control Device (BCD)?

Posted by: sddiver96

sddiver96

When you go scuba diving it can be frustrating when, for instance, you visit a wreck and find yourself floating down to the sea bed. A shipwreck often sits on the sea bead floor but some of the more interesting spectacles and finds are discovered at the top of the wreck. This can be several feet above the sea bed.

Most divers find when they reach the top of the ship wreck they are automatically fighting to get back up to the top of the ship and using a great deal of energy in just staying buoyant in that position. This is where the buoyancy control device, or BCD comes in.
A buoyancy control device will keep you in position hovering in the spot you want to. No longer will you float up or down to the sea bed and miss lingering on those fascinating sites often seen on the ship deck and balcony.

This buoyancy control device is also needed like when observing schools of tropical fish that like to move around 12 to 15 above the sea bed. It is far more thrilling to observe the school face on rather than from below. Basking sharks are also better observed at eye level and not from several feet below them. A buoyancy control device is perfect for holding the diver in position to observe sharks that more often than not swim in the centre of the sea depth and only occasionally hover on the sea bed.
Your buoyancy control device will allow you to release air from an air bladder so you can float or hover at your own depth. The buoyancy control device is sometimes referred to as a buoyancy compensating device or BC jacket. A wings and harness style is becoming popular among scuba divers as an alternative to the BCD jacket style. The harness system uses a bladder that is trapped between the harness and the tank. This style is more often used where scuba divers are diving with twin cylinders. Many lately even come with secure pockets for your weights, so that a weight belt can be eliminated, although this method may take a little getting use to.


There are a number of features on a buoyancy control device jacket, including the adjustable band that allows you to swap out your tank(s) between diving sessions. A low pressure inflator is also fitted which allows you to release air or alternatively gain more air and inflate (to rise up in buoyancy). Another feature is the over pressure valve which lets air out of the buoyancy control device so it will not split the bladder when overinflated.
BCDs come in so many different styles and sizes so be sure to try a few different ones before investing in your own.