Simplify the following text for a Grade 12 native English-speaking person.
Original: Numerous large cays ( including what used to be one of Fidel Castro 's favorite fishing spots ; the ArchipiÃ lago Jardines de la Reina ) characterize the southern coasts , while the northern coast is lined by Jardines del Rey of the Sabana-Camag Ã 1\/4 ey Archipelago .
Simplified: Numerous large cays ( including what used to be one of Fidel Castro 's favorite fishing spots ; the ArchipiÃ lago Jardines de la Reina ) characterise both the northern and southern coasts .