lake myvatn
Lake Mvyatn is known for it's many species of duck as well as other aquatic and semi aquatic animals. It is Iceland's fourth largest lake and has been studied by many scientists because of its volcanic activity.The area around Lake Myvatn has been formed by many volcanic eruptions, even the lake itself was formed by magma cutting off the flow of streams. In summer there is a marathon around the lake and it is suggested that you take at least a three day tour at Myvatn so that you can see all of the volcanic geology surrounding the area to it's fullest. (drekagil.wordpress.com)