Complex sentence: Ash Wednesday itself, while not an official holiday, is marked by most by visiting the beaches that abound both in Trinidad and Tobago, the most populated being Maracas Beach and Manzanilla Beach, where huge beach parties take place every Ash Wednesday.
Split into simpler sentences: Ash Wednesday itself, whilst not an official holiday, is marked by most by visiting the beaches that abound both in Trinidad and Tobago. The most populated being Maracas beach and Manzanilla beach, where huge beach parties take place every Ash Wednesday.