Those who book a snorkeling tour in Hawaii will have the unique opportunity to see the beauty and biodiversity of coral reefs. These colorful life forms play a key role in the survival of countless marine species. Before you dive into the water, here's more about these organisms.

What You Should Know About Coral Reefs

1. Classified as Animals

Many people mistake coral as a large rock or plant, but it is actually considered an animal. They are a grouping of creatures called coral polyps that live and grow while connected in one sprawling colony. The polyps rely on ions in seawater to form limestone exoskeletons for protection.

2. Serve a Quarter of All Marine Life

Coral reefs are among the most important ecosystems on the planet. According to the Environmental Protection Agency (EPA), approximately 25% of all marine life relies them for survival, including more than 4,000 species of fish. They provide food, shelter, and nursery grounds for a wide variety of species. Even humans count on them to protect the coast from storms, find food, and earn income from fishing and tourism.

3. Can Be Thousands of Years Old

Ancient reef ecosystems formed over 240 million years ago. Today’s established coral reefs are generally between 5,000 and 10,000 years old, making them some of the oldest living creatures on earth. Researchers have found coral beds off the coast of Hawaii that are more than 4,200 years old.

4. Need Sunlight to Grow

These organisms do not fare well in the darker depths of the ocean. Instead, they prefer clear, shallow water where they can easily obtain sunlight. They require salt water to grow and thrive in warm temperatures, but too much heat can be harmful. Corals have a symbiotic relationship with algae, which becomes dislodged if the ocean gets too warm. This turns the coral white in a process known as bleaching.

5. Clean the Surrounding Water

When you go snorkeling around these marine animals, you might notice how clean the water looks. Most corals are filter feeders that absorb the particles and debris that usually permeate the ocean. The clarity of the water gives swimmers an incredible view of their surroundings and the wildlife inhabiting the colonies.

Now that you have the facts about coral reefs, come see them in person. Sea Maui of Lahaina, HI, offers four exciting snorkeling tours that allow visitors to see the local marine life up close and personal, as well as breathtaking sunset tours. From colorful reefs to sea turtles and a wide array of tropical fish, your snorkeling encounter is sure to be an unforgettable experience. Call (808) 732-6284 today to book your next adventure, or visit their website for more information about their snorkeling trips.