Wednesday May 29, 2019
Once non-divers witness the amazing world underwater, they’ll understand our obsession and why it’s so important to protect the ocean. For someone just discovering the mystical underwater world, there’s seemingly no end to the different methods used to visit the ocean. The most common are: scuba diving, snorkeling, skin diving, and freediving. But what’s the difference between them?
SCUBA is an acronym for Self Contained Underwater Breathing Apparatus. Divers enjoy the freedom of being able to explore amazing parts of the ocean such as coral reefs and shipwrecks through their own air supply carried weightlessly on their backs. Scuba diving involves specialized training and certification. A basic Open Water scuba certification typically involves three phases: a) knowledge and basic scuba theory, b) skills and proficiency in using scuba equipment and c) open water skills demonstration. The scuba diving equipment comprises a pressurized gas tank filled with Enriched Air Nitrox with extra oxygen.
Did you know? Oxygen tanks contains 36% oxygen and therefore less nitrogen to reduce decompression sickness.
In Scuba diving, as one descends, in addition to the normal atmospheric pressure, water exerts increasing pressure on the chest and lungs—approximately so the pressure of the inhaled breath must almost exactly counter the surrounding or ambient pressure to inflate the lungs. By always providing the breathing gas at ambient pressure, modern equipment ensures the diver can inhale and exhale naturally and virtually effortlessly, regardless of depth.
Snorkeling requires no training. Generally shallow reefs ranging from sea level to 1 to 4 meters (3 to 12 feet) are favored by snorkelers. In snorkeling, you stay on the surface, looking down through a mask and breathing through a snorkel. Snorkeling requires no certification and can be enjoyed by virtually anyone at any pace. The only equipment required is a mask, fins, and a snorkel, and possibly a buoyancy vest to help them remain afloat without strain. Snorkeling is very useful when taking non-divers out to experience the underwater world. This is especially if they are not completely comfortable with actual diving.
Freediving is largely a competitive sport. It consists of various disciplines, all centered around the same principle: staying underwater for as long as possible on a single breath. Disciplines range from static apnea, where you lie stationary, face-down in a pool, holding your breath for as long as you can to ones where you have to cover as much distance horizontally or vertically as you can.
Freedivers wear masks that are often a blend between a dive mask and swim goggles, but do not use snorkels and wetsuits. Freedivers sometimes wear fins, although some disciplines don’t use them. Freedivers focus on the diving, spending little time at the surface apart from surface intervals and recuperation time.
Skin diving refers to a mix of snorkeling and freediving. A skin diver spends time at the surface, looking down on the landscape below while breathing through a snorkel, and does breath-hold dives, swimming down to observe interesting objects or marine life. Many advanced snorkelers practice skin diving, as well as freedivers just diving for fun rather than competition or training. Skin divers wear masks, snorkels and sometimes wetsuits, depending on water temperature. The snorkel is used in the surface, much as in snorkeling, and common diving equipment in terms of mask and fins are used.
Using techniques to both inhale as much air as possible and to use as little oxygen as possible while underwater. And they either swimming vertically for depth dives or horizontally for long time dive. Masks are typically much lower volume than dive masks, more similar to swim goggles. Fins are much longer than dive fins, and monofins, where both feet are in the same fin, are sometimes used. Unlike snorkeling and skin diving, the main goal is to spend as much time underwater as possible.
Noni for your skin
Are you a surfer, swimmer or diver and need relief from skin irritations after your ocean adventures? Try our Noni Lavender Lotion or Noni Bio Bandage. Noni is packed with antioxidant and anti-inflammatory compounds that can provide soothing relief to ocean related skin irritations.
In two separate studies Bushnell (1950) and Dittmar (1993) noted the importance of the degree of ripeness for the fruit compounds to optimally work within the body. Their findings show that the highest properties are found in ripe raw noni fruit. The process used to produce powders and juice include freeze drying and boiling which destroy the beneficial compounds. On the other hand, obtaining a reputable source of fresh fruit is hard to come by and can be very costly. Hawaiian Organic Noni has developed a way to produce a raw food product, Noni Fruit Leather that uses the entire non-fermented fruit pulp processed at low temperatures thus preserving all the natural benefits the fruit has to offer. Noni Fruit Leather also has a 2 year shelf life and is more cost effective and higher quality than other noni products on the market. Research at an independent lab has shown Noni Fruit Leather to be 14 times more potent than Noni juice due to its use of non-fermented noni fruit and a unique low-heat dehydration process that maintains the potency of the raw pulp of Noni.