Fill in the Blanks Fill in the Blanks: Exploring the Dark CaveOnline version Use the given words to complete the story and uncover the hidden treasure! by Cambridge College 1 towering mountain steep cliff cave beauty danger roaring forest excitement waterfall rocky river fiery lava hidden treasures brave volcano narrow valley icy ocean serene lake through vast desert Once upon a time , there was a explorer who decided to embark on a journey to discover the of the world . He traveled through a dark , climbed a , crossed a , and ventured into a dense . Along the way , he encountered a , a , and a . He explored the depths of an , crossed a , and hiked a . Finally , he reached the edge of a and gazed at the flowing down its slopes . The explorer's journey was filled with and , but he never gave up . He knew that the of the world was worth every challenge he faced .