With cascading waterfalls and as many as 103 rivers, all major groups of vertebrates can be found in Sri Lanka. Of these, the highest endemic species are found in the amphibian and reptile group. Most of the 107 species of fish are found in marsh and river dwelling.The 39 endemic species – the Carplet group – being restricted to the perennial streams of the wet zone. The British introduced trout into the clear, cold streams of Horton Plains. Of the 54 species of amphibians, 33 are endemic to the island. According to ongoing research, the largest number of endemic amphibian fauna in the world may soon be found in Sri Lanka. One endemic genus, the Nannophyrus, with three species, is common in the wet zone living on rock ledges, covered by a continuous trickle of water, and sharing the same habitat with tadpoles.   Maritime Turtles Watching Marine turtles were roaming the oceans for about 190 million years. Among the many different varieties of this species only eight reptiles are found living today. Of the eight, Sri Lanka is famous for five kinds of turtles who regularly visit the sandy beaches to nest in the south-western and south-eastern beaches. Turtles are best seen in the nights.     Dolphin/Whale Watching Sea expeditions to see dolphins and whales are arranged mainly in the following coastal cities of Kalpitiya ( North west coast), Trincomalee in the East coast and the cities in the south coast are Aluthgama, Ambalangoda and Hikkaduwa. Whales seen include:- Common Blue Whales , Bryde's Whales , Sperm Whales , Killer Whales , False Killer , Dwarf , Melon Headed Whales , Cuvier's Beaked Whales and if lucky, the elusive Indian Blue Whales. Dolphines seen include:- Spotted Dolphins, Spinner Dolphins, Fraser's Dolphins, Risso's Dolphins, Common Dolphins and the Bottlenose Dolphins. Deep Sea Fishing Explore the unexplored in Sri Lanka an area that has the potential to be one of the hottest fishing spots. Its unspoiled seas and fishing zones hold an abundance of game fish for the keen angler. Species of Marlin, Sail Fish, Wahoo, Spanish Mackerel, Grat Trevallie, Benito, Queen Fish Barracuda, Grouper, Cobia and Tuna make this beautiful island second to none when it comes to sea angling. Scuba Diving & Snorkelling A wide coral shelf surrounds Sri Lanka’s coast at intervals, from north to south, providing excellent sites for skin-diving. The discovery of the beautiful underwater natural world in Sri Lanka will make you absolutely fascinated and spell bound. The blue green, turquoise and aquamarine waters are home for the magical and mysterious underwater world of coral veets, shells and a fantastic variety of fish. The adventure of scuba diving can be easily combinedwith activities like underwater photography and fish identification. The coral world offers beautiful species such as Rays, Eels, Clown Fish, Porcupine, Moorish Idol, Unicorn and Moorish Angle. The common species belonging to the families of Aroporidae (Staghorn Corals), Poritidae (Donnie Corals), Mussidae (Brain Corals), faviidae (Ster Corals) and Pocelloporidae (Flower Corals) are also found here.