chóng​jiǔ​dēng​gāo

to climb high on the Double Ninth Festival

  1. Double Ninth Festival
    The ninth day of the ninth month of the lunar calendar; a traditional festival involving activities like mountain climbing and admiring chrysanthemums.
  2. Chongyang Festival mountain climbing
    specifically refers to the custom of climbing mountains on the ninth day of the ninth lunar month during the 重阳 chóng​yáng festival