Dive Sites in Ilhabela – Brazil

27 05 2010

 

Ilhabela is strategically located between the two largest cities in Brazil (250 km from São Paulo and 350 km from Rio de Janeiro). It is the right destination for divers on the São Paulo coast. If you like to party with beatiful people, plan your visit in July when the town hosts the International Sailing Week.

The island is covered with Atlantic Rainforest and has more than thirty waterfalls. There are dives for all tastes, from snorkeling to technical, including famous shipwrecks such as the Aymoré and the Velásquez.

One of the largest, if not the largest, concentration of shipwrecks in Brazil is located to the south and east of the island. Ironically, the sea in Ilhabela is calm most of the time. More than one hundred ships are believed to lie at the bottom of the blue Atlantic. Ships from centuries past, sailboats, fishing boats, all types of vessels have transformed Ilhabela into the largest naval graveyard in Brazil.

The island is also shrouded in legend. During the sisteenth century, english pirates used to sail around Ilhabela where they are said to have hid treasures pillaged from Spanish galleons loaded with gold.

The mos famous lost treasure stor in Ilhabela involves the pirate Cavendish, who supposedly buried a large amount of gold in Saco do Sombrio. If this is true, hurry up! The treasure is still there. Welcome to the Shipwreck Heaven! The diving island!

See dive sites in Ilhabela!

Source: Brazil Diving Guide

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The use of an octopus and the buddy system while diving

24 05 2010

An octopus is one of the most recommended ways in which two divers can backup each other with air in case their own fails or they run out of it before they had expected. This way, an octopus and the buddy system allow divers to count on a second air source as long as their buddy is close enough and disposed to share their air, which not always happens.

There are some objections that are often done regarding the octopus and the buddy system. According to these objections, an octopus is not the best solution at the time of being in an emergency and running out of air, and divers should find other solutions instead of it.

Relying on an octopus and another person whom you might not even know while running out of air deep in the water is not always the best idea. The octopus and buddy system takes a good predisposition and relines from both parts which can assure that at the eventuality in which one of them runs out of air, the other will share his remaining air with the first one. If this doesn’t happen, that person could die before reaching the surface, so it is a really serious matter and those who use this system must know the other person and rely on each other.

According to statistics, many diving accidents occur when a diver runs out of air and tries to reach his buddy’s octopus unsuccessfully. Therefore, and according to some professional divers, using the buddy system and the octopus can be riskier than not using it. Once divers use the octopus based on the buddy system they might forget about checking their own air since they rely on their buddy and this leads to running out of it more often.

Another objection often said against the use of an octopus is that when one of the divers runs out of air and asks the second person to share theirs, if they started diving together then this second person will probably be also about to run out of it as well. Despite all this objections, the use of an octopus and the buddy system is still the backup system used by many divers and which can be very advantageous when used by two people who can trust and rely on each other.

Source: Dive Pilot





Stranded boat turns attraction in Rio Grande do Norte

17 05 2010

A boat became stranded for six months attraction on the beach of Buzios, on the southern coast of Rio Grande do Norte, the same place where he arrived. Before getting bogged down, the fishing boat came from Nigeria and spent four days adrift.

The six crew members aboard have returned to their respective countries and the boat turned tourist attraction. Surfer André Marques account that the route of the site is buggy and the tourists come down to take pictures. The appeal of surfers now is that the boat go to the bottom of the sea and turn attraction for divers.





Into the Abyss Anhumas

14 05 2010



Was recently published in  Outpost – the leading magazine of adventure in Canada, also sold in the United States, a report on Abyss Anhumas in Bonito (MS), produced by journalist Robin Esrock.

In the field he describes walking into the Abyss Anhumas and reports information about the Pantanal.

See more in Submundo Dive!





Cave diving in Brazil

10 05 2010

Cave diving is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. It is an extension of the more common sport of caving, but is much more rarely practised because of the skills and equipment required, and because of the high potential risks.

Brazil

In Brazil there is cavern diving in Chapada da Diamantina, in Bahia state; Bonito, in Mato Grosso do Sul state; and Mariana, where there is also cave diving (visiting Mina da Passagem), in Minas Gerais state.

To dive in public parks, for example those in Bonito, one must be adequately certified by an agency recognized by IBAMA – Instituto Brasileiro de Administração do Meio Ambiente, a federal organ. For cave diving in Mariana a cave diver certification will be required.

Source: Submundo Dive





Patterns of sponge distribution in Cagarras Archipelago, Rio de Janeiro, Brazil

8 05 2010

The structure and distribution of the sponge community in five sites and four habitats in Cagarras Archipelago, Rio de Janeiro, Brazil, are described.

The archipelago has three major islands (Cagarra, Palmas, and Comprida), and four islets. Qualitative samples were taken by SCUBA diving in the three islands and in two islets, and quantitative samples were taken in Palmas Island only. Cluster analysis using Jaccard`s coefficient on qualitative data grouped the two islets (Cagarra Bank and Cagarra Islet), which are more exposed to wave action, and the three islands formed a group of relatively sheltered sites.

See more in Submundodive!





Sea level rises on the Brazilian coast four millimeters per year

6 05 2010

According to data collected at ports along the Brazilian coast, sea level is rising in Brazil about 40 centimeters (cm) per century, or 4 millimeters (mm) per year (mm / year). The finding is the Laboratory of Ocean Tides and Temporal Processes (Maptolab) Institute of Oceanography (IO) of the University that investigates changes in sea level along the Brazilian coast, from measurement series that began in 1980.

Data analysis is done by means of daily variations, seasonal mean and annual mean sea level, which allows us to estimate the local variation of the long term.