The Adriatic Sea and the Croatian islands are known for their beautiful beaches, crystal clear waters, and picturesque landscapes. Nevertheless, a wide range of flora and fauna are also found in the region. The Adriatic Sea and Croatian islands offer an interesting look into nature, as the colourful marine life that lives in their waters is complemented by a special species of plant which thrives on these islands.

The Adriatic Sea's rich aquatic life is a major characteristic of the sea. There are a variety of fish species found in the sea, such as sardines, anchovies, mackerel and tuna. There are also octopus, squid, cuttlefish and crustaceans such as crabs and lobsters for visitors to see. Marine mammals, like dolphins and porpoises, can also be found in the Adriatic Sea.

Apart from the marine life, a diverse range of coral and other aquatic organisms is present in the Adriatic Sea. Red coral which is a protected species due to overfishing has been the most frequent type of corals found in the Adriatic Sea. There is also a variety of seaweeds in the Adriatic Sea, such as brown, green and red algae.

A wide range of flora and fauna are also present on the Croatian islands. Various Mediterranean plant species such as olive, cypress and pine are present in the islands. A number of cactuses, succulents and flowers such as red poppy or yellow daises can also be seen by visitors.

A number of bird species, such as the golden eagle, the peregrine falcon, and the osprey, are also found on the islands of Croatia. There are a number of migratory birds in the area such as swallows, cuckoos and bee-eaters that visitors can see. A wide range of animal species, including reptiles and amphibians such as frogs are also found on the islands.

A diverse range of mammalian species, including mouflons, wildcats and weasels, can be found on Croatia's islands. There are many bat and insect species that visitors can see, such as fire flies and ladybugs.

It should be pointed out that there are a whole range of threatened species, including the Mediterranean monk's seal, loggerhead sea turtles and griffon vultures in the Adriatic Sea and Croatian islands. The preservation and conservation of these species and their habitats, so as to ensure that future generations can enjoy a rich biodiversity in the region, is essential.