Daily Chinese Idiom Guessing Game
Full of enthusiasm and interest; in high spirits.
兴致兴趣；勃勃旺盛的样子。形容兴头很足。
清·李汝珍《镜花缘》第五十六回到了郡考，众人以为缁氏必不肯去，谁知他还是兴致勃勃道‘以天朝之大，岂无看文巨眼。’”
They set off on their hike,兴致勃勃 and ready for adventure.