The cleaner water in the Bahamas and Hawaii than along the California coast is most likely due to a combination of both of these factors: 1 The sediments in the Bahamas and Hawaii are made out of larger particles that are more difficult to stir up or suspend, and 2 there are significantly less...
The clearer waters of the Bahamas and Hawaii compared to those of California are due to several factors. First, the Bahamas and Hawaii have deeper waters than does California. As we've seen, sunlight can penetrate deep underwater, leading to the formation of algae growth. Algae uses the carbon from the air when it photosynthesizes (i.e., makes sugar from water and light energy) and releases oxygen as a by-product. This process occurs naturally but can lead to an algae bloom if more algae grows than can be consumed. When this happens, the leftover algae dies and sinks to the bottom of the ocean where it becomes sediment.
Second, there are fewer human activities that could pollute the water. There are no large factories in the Bahamas or Hawaii that would release pollutants into the water. There are some small scale industries in both places that operate without proper oversight but they tend to use materials that degrade quickly so they don't contaminate the water supply.
Finally, the Bahamas and Hawaii are not as crowded as California. There are many more small-scale activities that could disturb the sediments at the bottom of the ocean.
While the water isn't as clear as in the Caribbean, it's still extremely tropical and rather beautiful. As you get farther into the water, the water becomes a darker blue. Hawaiian beaches are incredibly clean, and they are kept in excellent shape by routine upkeep. There are no toxic chemicals used in beach cleaning in Hawaii.
Beaches are the main attraction for visitors to Hawaii, but there are many other places to visit if you have time. The island of Maui has some stunning national parks, while Oahu has great museums and shopping. You can also go hiking or take outdoor activities such as surfing or kayaking. In fact, these are some of the best things to do in Hawaii!
The entire state is made up of islands, and most of them are surrounded by beautiful beaches. So whether you're looking for a quiet place to relax or you want to do some active things, Hawaii has something for everyone.
While other shores are subjected to the continual upheaval of turbid waves, Hawaii is exempt since its surrounding ocean is teeming with coral reefs. These strong ecosystems withstand and spread the energy of oncoming waves, allowing them to draw up less debris and come in pure blue. Corals also provide vital habitat for many species of fish and shellfish.
Coral reefs were once found across the world's oceans, but now account for only about 10 percent of these structures. The main reason for this decline is human activity: fishing without catch quotas or illegal fishing practices has depleted global coral populations by nearly 90 percent in the last three decades.
In addition to being a source of beauty and protection for local people, coral plays an important role in maintaining the balance of nature. It provides a home for many types of algae that live in the open sea, but which cannot swim away from danger. When waves crash against the reef, they lift the algae high into the air, where sunlight dries it off. This prevents both plants and animals from drowning in their own droppings and allows new life to grow quickly. Coral also protects shorelines from erosion by providing an anchor for dry land and trapping sediment like sand and mud. This property has helped create some of the most beautiful beaches in the world.
The future survival of coral depends largely on how much damage we can prevent from happening in the first place.
The surrounding seas are shallow and devoid of sea vegetation, giving the water a greener colour. Because the ocean is shallow, the waters of the Bahamas are bright blue. The blue hue is caused by the water's absorption of red and green light wavelengths. As with clouds, the color of water changes depending on its depth. Light passes through the water to reach the bottom where it is reflected back up to the surface.
The lack of sea grass also means there are no barnacles or other marine organisms to attach themselves to submerged objects like boats, so they do not affect navigation.
The main source of fresh water for the islands is precipitation. However, since the islands are low-lying, most of this water runs off quickly after it falls as rain. Only about one percent makes it into underground aquifers before escaping back into the atmosphere because there are no natural barriers such as hills or mountains that could trap water vapor beneath them.
Bahamians get their water from the sea. Although freshwater lakes and ponds do exist in the country, they account for only 9% of total land area. The remaining 91% is made up of saltwater beaches, coral reefs, and inland bodies of water such as bays and canals.
Why is it that certain beaches have clear water while others have murkier water? When warmer ocean surface temperatures go further out to sea, they are replaced by deeper, colder, and more sediment-rich waters. The Pacific Ocean is vast, and upwelling causes much of the water to become brownish-gray. However, there are also white sandy beaches down under where the surf is clean enough for swimming. These are usually found near continental landmasses like those in Australia or South Africa. When storms roll in, they can bring in all sorts of debris that washes up on the shoreline, including trash such as plastic bags and bottles. The particles get trapped in the top layer of the water, blocking out sunlight and creating a dark area on the surface of the water called an "oceanic darkness". The only way to break this darkness is with light from the sun or moon. When clouds block out the sun, so too does the light that reaches the ocean floor. All life on Earth requires some type of light to survive; plants use the light energy from the sun to make sugar and other nutrients, while animals eat the plants and move on. Without this light, we would be left with nothing but rocks.
The reason that some beaches are clear while others have murky water is because they are located far away from continents, where upwelling occurs. Upwelling is when deep currents pull fresh water up from below the ocean floor and into shallower waters where it replaces the more stagnant older water.