Dolphin Treasure, chapters 1-5 Crossword

very large
playing about happily
continuing or enduring forever
surrounded by land
the ocean falls and rises twice a day
a Spanish sailing ship with square-rigged sails used for war or commerce
the two halves of a whale's tail
uses sound waves to find items that are underwater
cut as if with a knife or scissors
stayed nearby
standing still, not moving
gold coins also known as "pieces of eight"
a machine that regulates the flow of oxygen for divers
of or relating to the sea
to take something too lightly
to make stable
sudden violent winds accompanied by rain
sailors use two landmarks that are a known distance apart, usually to help them figure out where they are
property saved from destruction in a wreck
sudden violent winds often accompanied by rain
objects made by human beings
searched carefully