The greatest growth actually came in the low season
Clare County Council say a record 1,427,166 people visited the Cliffs of Moher Visitor Experience during 2016.
That is a 14% increase on the previous year.
Fully Independent Travellers (FIT) visitors - including walkers, cyclists and those travelling by car or public transport - grew by 13.5%, while group visitors grew 15%.
But the greatest growth came in the low season, with visitor numbers for December up 52% on the same month in 2015.
The council say substantial investment in the Visitor Experience, and its inclusion in the Wild Atlantic Way, has contributed to its popularity.
The director of the Visitor Experience said the figures reflect the “huge popularity” of the Cliffs of Moher.
Katherine Webster also indicated that measures continue to be put in place to accommodate the numbers.
“Dealing with this number of visitors is not without its challenges and the Cliffs of Moher Visitor Experience faced capacity issues during peak times throughout the season,” she said.
“The majority of people look to visit between 11.00am. and 4.00pm and consequently, our facilities have at times struggled to cope with the numbers during the peak season. We introduced off-peak pricing for pre-booked groups who come outside of these times in 2014.
"But it takes time for tour operators to be able to change their itineraries. This was one of the reasons we saw higher growth from this segment as our extended opening hours in the summer allowed above average increases outside of the peak."