The Sea Mysteries of Penkroft

On long winter evenings, comfortably settled in front of the fireplace, five friends, brave inhabitants of the Mysterious Island, engaged in endless and fascinating conversations. About what? About everything in the world! The stunningly interesting memories of Bonaventura Penkroft -... an experienced sailor and fearless traveler - were universally loved. His stories were not quite ordinary. Each of them contained some geographical enigma. How are atolls formed? Can fish be caught on land? Where is the sea in which one cannot drown? Is there ice at the equator? Where do giant waves come from?.. Try to answer all the questions, even the trickiest ones, together with the inhabitants of the Granite Palace in response to the tireless researcher of the sea expanses.