Some 550,000 took to trails in the Tatra National Park in July, state news agency PAP reported.
The figure was only slightly down on the 577,000 in the same month last year.
This August tourist numbers have also been high, PAP reported, adding that there were queues at entrance points to trails leading to the most popular peaks.
Tatra National Park officials are reminding visitors they should keep a distance of one-and-a-half metres from others, and avoid touching benches, barriers and fences.
(pk/gs)
Source: PAP