Scuba divers are going across the depths of the waters for commercial, scientific and military purposes. But the majority is enjoying diving for recreational purposes to see the beauty that lives in the ocean waters. There are hundreds of places to dive around the world. But followings are the most popular places to dive in the world.

1. Scuba Diving in Cozumel

Cozumel is the Mexican Caribbean’s largest island, just 12 miles off the coast of the Yucatan Peninsula. Every professional diver has a dream to dive Cozumel. Lots of activity on Cozumel is focused on the reefs and shallow coral formations that extend from the southern tip of the island to just south of San Miguel on the west coast. This is a good place to dive if you like. Because there are very good accommodation facilities and each depends on your budget and vacation style. English is widely spoken in Cozumel, but Spanish is the official language.

2. Scuba Diving in Fiji

Fiji is a beautiful country having fantastic beaches with coral reefs. There are lots of places to dive in Fiji, Such as Mamanuca dive sites in Viti Levu Island, World famous Astrolabe Reef and Beqa Lagoon in the Southern Islands, World famous Rainbow Reef in the Northern Islands, Two separate barrier reefs between Viti Levu and Vanua Levu in the north-east of Fiji, etc. There are plenty of resorts offering scuba diving scattered around the islands.

3. Scuba Diving in Grand Cayman

Grand Cayman is the largest of the three Cayman Islands and located near to Cuba. Grand Cayman offers some of the greatest underwater diversity anywhere in the world. This is a beautiful island having with sponges and corals in a stunning array of colors, and an assortment of wrecks and shallow reefs filled with schooling fish and small invertebrates.

4. Scuba Diving in Koh Tao Thailand

Koh Tao is a small island located in the Gulf of Thailand. This is one of best places to dive in Asia. If you like to sea turtles, tranquil sandy beaches, granite boulder, jungle and coconut trees covered coastal line Koh Tao is the place to visit. Koh Tao will give you a hidden underwater treasure, with an impressive variety of marine life.

An essential part of any scuba diving expedition is the scuba tank. For obvious reasons, you want to be sure that you get a scuba tank that is reliable and has enough capacity for the majority of your dives, yet easy enough for you to maneuver and carry. Scuba gets its name from the diving tank, because SCUBA stands for Self-Contained Underwater Breathing Apparatus. In fact, that is the distinguishing factor between snorkeling and scuba diving because the high-pressure gas for breathing allows you to go deeper underwater without resurfacing.

Scuba tanks contain several components including the aluminum or steel pressure vessel that holds the mixed oxygen-gas mixture, the pillar valve which connects to the diving regulator, and the rubber o-ring that forms a seal between the valve and regulator. The tanks made of steel add more weight to those that wear highly buoyant diving suits, or other tanks might be made of aluminum for ease of carrying. They should not be confused with oxygen tanks, because scuba tanks contain an air mixture that includes oxygen, but is not the oxygen-rich, hospital quality mixture.

Another factor that comes with deeper diving is that you might need different scuba tanks for each phase or depth of the dive. For example, your tank for the ascent and descent might include 21 to 40 percent oxygen, where the scuba tank you would use in deeper water might contain lower amounts of oxygen below the 21 percent or hypoxic below 17 percent. Decompression scuba tanks will contain high amounts of oxygen or pure oxygen to accelerate the decompression process.

Those that are certified in scuba diving instruction know formulas to calculate the amount of air you will need and take other factors into consideration. Details such as tanks that get lighter as you breathe them are on the verge of getting empty, can be a factor to consider in buoyancy, which will increase towards the end of the dive, for example. Recreational divers don’t need to worry about these scuba tank issues as much as those doing technical dives, such as exploring old shipwrecks in cold, deep and murky waters, for instance. The importance of your scuba tank is obvious when you are going on scuba diving expeditions, so it is advisable to seek out certified and expert help on your tanks before venturing out on your own.