We rented a car. The car rental businesses are in terminal right across street from baggage claim. One minute walk. We used Dollar approximately 4 days with insurance and taxes $238.00. Best and accurate rates were on their website. The drive is easy where you are going. Easy border cross with passport no line when we were there (winter too!) Easy in/out of airport. Have a great time!
Does your Hotel have a shuttle from airport? How long are you staying & how close to falls is your hotel? Check Trip Advisor & Ask Google!
Renting a car will be fastest, and likely most cost effective too considering you're probably going to have some other transportation needs too during your stay.
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