Honeymoon Bay (Chinese: 蜜月灣; pinyin: Mìyuè Wān) is a small bay facing the Pacific Ocean, located at the northeast coast of Taiwan in Toucheng Township, Yilan County.

Southeast of the bay is Guishan Island, famous to Taiwanese people.

It can be reached by taking the train to nearby Daxi Station of the Taiwan Railway Administration (TRA) and then walking for about 10 minutes.

The northern and southern shores of the bay are rocky, while in between there is a beach covered with fine, dark-gray sand.

Such waves hit the bay repeatedly, making surfing a common activity here.