2.5 million visitors in 2015, leading authorities to pledge a cap of 1.5 million tourists the following year.
While this statement was later rebuked and no limits have been put in to place, the concerns about mass tourism are real.
Cruise liners regularly bring in visitors who don't spend money in the area, while the huge swathes of tourists are said to have led to more landslides and rock falls.
If you must go then...
Visit outside the summer season and go to local restaurants and businesses.
Alternatively...
Head south to the gorgeous town of Portovenere. With no rail access, it is less enamored by tourists and is all the better for it.