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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

Celebrate World Oceans Day with Birch Aquarium at Scripps, San Diego

Celebrate World Oceans Day with Birch Aquarium at Scripps, San Diego

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Scripps Institution of Oceanography / University of California, San Diego It's time to celebrate our big blue ocean!Birch Aquarium at Scripps Institution of Oceanography, UC San Diego, will mark Worl... Read more

Top 5 Dive Sites in Dahab, Sinai Desert, the Red Sea

Top 5 Dive Sites in Dahab, Sinai Desert, the Red Sea

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Located in Egypt’s Sinai region, Dahab has become a huge attraction for divers. North of Sharm el Sheikh’s popular holiday and dive resorts, the little town of Dahab has everything an und... Read more

Want to go Scuba Diving in Barbados, the South East Caribbean?

Want to go Scuba Diving in Barbados, the South East Caribbean?

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The reefs and edges just off the coast of this small tropical Caribbean paradise are home to many different plant species, coral and sponge life. The sheer diversity of the reefs here is simply astou... Read more

Choosing a Dive Center to do your IDC (Instructor Development Course)

Choosing a Dive Center to do your IDC (Instructor Development Course)

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When you take your PADI Instructor Development Course you will find it is made up of two parts; the Assistant Instructor Course and the Open Water Scuba Instructor Course. Once these are completed yo... Read more

Red Sea Marine Life, Healthy & amazing!!

Red Sea Marine Life, Healthy & amazing!!

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Any attempt to describe the marine life of the Red Sea risks drowning in superlatives--it is extraordinary, unparalleled, marvellous, incredible, and truly wondrous. It was not by chance that Jacques... Read more

Scuba Diving off the Island of Roatan in Honduras

Scuba Diving off the Island of Roatan in Honduras

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Roatan is an island just off the north coast of the Central American country of Honduras. It is surrounded by several other islands, most of which are smaller, and include Utila, Guanaja, Hog Island... Read more

Scuba Diving Hurghada on the Red Sea

Scuba Diving Hurghada on the Red Sea

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The best time to come out to the Red Sea area of Hurghada is during the months from March to September. Diving conditions are perfect here during this period, although July and August can get oppress... Read more

Scuba Diving beautiful Koh Samui island in Thailand

Scuba Diving beautiful Koh Samui island in Thailand

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Koh Samui is a beautiful island in the Surat Thani region of Thailand. The majority of the professional scuba diving schools and dive shops in this area are affiliated with the SSS network. On Koh Sa... 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

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

Scuba Diving the Canary Islands of Spain

Scuba Diving the Canary Islands of Spain

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If you want to visit one of the many great scuba diving locations off the coast of Africa then the Canary Islands are home to many great scuba diving sites, Dive centers and Dive resorts. Here you wil... Read more

Should I rent or own my Scuba Diving Equipment?

Should I rent or own my Scuba Diving Equipment?

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Ask any experienced scuba diver and he or she will soon tell you that there is nothing like owning your own gear. Each time you go away on a scuba diving trip you will at first need to hire out scub... Read more

Shark fishing banned in Mexican waters

Shark fishing banned in Mexican waters

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The National Commission of Aquaculture and Fisheries (Conapesca) decided to ban the fishing of all shark species in federal waters on both coasts in order to contribute to the conservation of the res... 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

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 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

Coral Reefs Video....

Coral Reefs Video...."Take Care of them"

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    Biological oceanographer Dr. Chris Langdon (University of Miami) tells us that about 25% of all fish life in the ocean spends some part of its life cycle in a coral reef. He belie... Read more

What is a Buoyancy Control Device (BCD)?

What is a Buoyancy Control Device (BCD)?

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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 ... Read more

Laughing and Diving at Deep Blue Dive Resort, Utila

Laughing and Diving at Deep Blue Dive Resort, Utila

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Relaxed, at home, fun, great vib!!!....is what I felt during my stay at Deep Blue Dive Resort on the island of Utila. Steve, the owner, I must say, is one of the most unique people I have ever met. W... Read more

Paddleboarding and Scuba Diving the Caribbean in Roatan And Utila Honduras

Paddleboarding and Scuba Diving the Caribbean in Roatan And Utila Honduras

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  I recently had the opportunity of paddleboarding the beautiful waters of Honduras. While residing on the islands of Roatan and Utila for six months, I ate, drank and slept scuba diving. And wh... Read more

Scuba Diving in the South of France

Scuba Diving in the South of France

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The south of France offers most divers several suitable conditions for scuba diving and a number of different wrecks to see. The waters here are warm and balmy most of the year round and even in wi... Read more

Whale sharks off Utila island in Central America.

Whale sharks off Utila island in Central America.

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For many years the local fishermen of Utila knew about a huge fish that swam around the shores of Utila- it was called “Old Tom”, the largest of fish, today we know it as the Whale Shark.... Read more

Scuba Diving around Cairns on the Great Barrier Reef

Scuba Diving around Cairns on the Great Barrier Reef

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Diving in the North Queensland area of the Great Barrier Reef is an experience that will allow you to boast that you have dived the world's largest reef system. Scuba diving the Great Barrier Reef is... Read more

The Perfect Scuba Diving Adventure in Key West, Florida!

The Perfect Scuba Diving Adventure in Key West, Florida!

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It’s not surprising that divers across the world hail Key West, Florida as one of the best locations for scuba diving. Apart from the scenic landscape that’s distinctive of the Florida ... Read more

Scuba Diving Cebu in the Philippines

Scuba Diving Cebu in the Philippines

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Scuba diving in the Philippines would not be complete without a visit to the coral reefs of Cebu. Up until recently the area was a marine reserve belonging to the administration of two of the largest... Read more

Scuba Diving Bon Bini-style on the Dutch Antilles Island of Curaçao

Scuba Diving Bon Bini-style on the Dutch Antilles Island of Curaçao

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Curaçao is situated 40 miles off the coast of Venezuela and is known for its pockets of beautiful beaches, clear water and an awe-inspiring diving experience. Divers from all over the world co... 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

Our Fiji Dive Centers and Dive Resorts for our visit soon!!!

Our Fiji Dive Centers and Dive Resorts for our visit soon!!!

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A few of us here at TheScubaDivingDirectory.com are planning a trip to Fiji in the upcoming months to meet our Fiji Dive Centers and Dive Resorts and do some amazing diving. We love to visit our Dive... Read more

6 Things You Need to Know About Scuba Diving in Bali -

6 Things You Need to Know About Scuba Diving in Bali -

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Bali, Indonesia is a popular scuba diving destination in Asia. The country’s rich culture, scenic landscape and serene lifestyle offer sanctuary to harried travelers who need to break away from... 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 beautiful Cebu Philippines

Scuba Diving beautiful Cebu Philippines

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If you want to look at scuba diving with an added thrill to it, then scuba diving in Cebu Philippines with sharks has to be it. Shark diving in the Philippines is a one way ticket to a scuba dive you... 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

Five Best Things To Do In Koh Samui Thailand, including scuba diving

Five Best Things To Do In Koh Samui Thailand, including scuba diving

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Like every treasure, Koh Samui has been around for many centuries. But it was in the early 1970’s when two tourists came across the tropical paradise. During those years until the 1990’s,... Read more

Scuba Diving and Flying - What you must do and must not do!

Scuba Diving and Flying - What you must do and must not do!

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Many divers have asked, "What are the reasons why I am forced to wait until clear to fly after a dive." The reason is all down to something called pressure. When we are positioned on the ground, in o... 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.