Anyone vacationing in Hawaii, including visitors from Canada, must pay the "green fee," a tax increase which kicked in on Jan. 1. How will visitors pay the green fee? The green fee will be automatically added to the tax when booking hotels or short-term rentals in Hawaii. "The Green Fee ensures that the resources needed to protect Hawaiʻi are available for future generations." Baja California Sur in Mexico has also increased the mandatory Embrace It Tax, which tourists must pay before entering the state.