赏月 (shǎng yuè, moon gazing) is a central tradition of the Mid-Autumn Festival (中秋节). 赏花 (shǎng huā, flower viewing) is popular during spring, especially for cherry blossoms and plum blossoms.
usage
赏 has two distinct meanings: (1) to appreciate/admire (beauty, nature), and (2) to bestow/reward (from a superior to an inferior). The first meaning is more common in modern Chinese.