For the best award winning, fun, quality games for children, family and adults, then look no further.

Trefl Puzzles - Educational Games

Since 1985, Trefl has been trying to do its best to satisfy the tastes and expectations of puzzle lovers. Trefl is currently offering puzzles which:

• consists of pieces of different size and number

• are characterised by an attractive design and are based on popular licenses

• are available in a wide range of themes for the youngest customers

• include interesting collections for adultsare of high quality

• are made of environment-friendly materials

About the Coral Reef

Coral reefs are underwater structures made from calcium carbonate secreted by corals. Corals are colonies of tiny living animals found in marine waters containing few nutrients. Most coral reefs are built from stony corals, and are formed by polyps that live together in groups. The polyps secrete a hard carbonate exoskeleton which provides support and protection for the body of each polyp. Reefs grow best in warm, shallow, clear, sunny and agitated waters.

Often called “rainforests of the sea”, coral reefs form some of the most diverse ecosystems on earth. They occupy less than one tenth of one percent of the world ocean surface, about half the area of France, yet they provide a home for twenty-five percent of all marine species,   including fish, molluscs, worms, crustaceans, echinoderms, sponges, tunicates and other cnidarians.  Paradoxically, coral reefs flourish even though they are surrounded by ocean waters that provide few nutrients. They are most commonly found at shallow depths in tropical waters, but deep water and cold water corals also exist on smaller scales in other areas.

Coral reefs deliver ecosystem services to tourism, fisheries and shoreline protection. The annual global economic value of coral reefs has been estimated at $30 billion. However, coral reefs are fragile ecosystems, partly because they are very sensitive to water temperature. They are under threat from climate change, ocean acidification, blast fishing, cyanide fishing for aquarium fish, overuse of reef resources, and harmful land-use practices, including urban and agricultural runoff and water pollution, which can harm reefs by encouraging excess algae growth.