I have had this problem with Safari since I started geocaching last August. In fact I always assumed it was just a general problem with the Geocaching website until I asked others at a meeting today and nobody else had any issues!
I therefore checked on Chrome when I got home and, sure enough, it worked fine - the first time I’ve ever used the website without having to repeatedly refresh literally every single time I click a link!
Still, I use Safari for my browsing generally and would like not to have to switch to Chrome every time I want to use the Geocaching site!