Krakatoa, or Krakatau, is a name familiar to most, though few know where it is located. Lying in the Sunda Strait, between Java and Sumatra on the Pacific ring of fire, is the site of the largest volcanic eruption in modern history. The 1883 eruptions culminated with a colossal blast that literally blew Krakatau apart. The noise was heard over 4,600 km away. Eruptions since 1927 have built a new cone known as Anak Krakatau ("The child of Krakatau") that is still active, with its most recent eruptive episode having begun in 1994. Quiet periods of a few days alternate with spectacular Strombolian eruptions. Guest activities will be determined by the level of volcanic activity on the day and may involve ship based viewing or zodiac tours.