Kayaking the Mrežnica, Croatia
Paddle a clear karst river and drop over small travertine waterfalls, half an hour from Plitvice.
The Mrežnica is the river most visitors to Plitvice drive straight past, and they miss one of the most fun half days in Croatia. It runs through Karlovac County between Zagreb and the national park, and like Plitvice it is shaped by travertine: the same mineral that builds natural dams there builds dozens of small barriers here, each one turning the river into a low waterfall.
That is what makes kayaking it different. Instead of flat paddling, you float a calm, clear stretch, then line up and drop over a small cascade, then float again. Drops are usually a metre or two, guides show you the line on each one, and anything bigger gets carried around. Between waterfalls there are rocks to jump from and pools to swim in, and the river is unusually warm for the region in summer, which turns the whole trip into half paddle, half swim.
The trip we link to starts in Primišlje, about 15 minutes from Slunj and the old watermill village of Rastoke, and around half an hour from Plitvice's northern entrance. That makes it an easy pairing: walk the lakes one day, get in the water the next. It runs from April to October, with July and August the warmest, in stable two-person sit-on-top kayaks that are forgiving for first-timers. Children from six can join with a parent.
Half day, about 4 hrs
Easy, no experience needed
From €55
April to October
6+, with a parent
Small guided groups
Primišlje, 15 min from Slunj
Kayak, wetsuit, helmet, vest, guide, park fee
Who is it for?
Best for: Families with older kids, groups of friends, and anyone visiting Plitvice who wants a day in the water rather than beside it. Stable kayaks and short drops make it beginner-friendly.
Skip it if: You cannot swim, or you want serious whitewater. This is playful river kayaking, not a rapid run.
How the day runs
Meet your guide at the base in Primišlje, about 15 minutes from Slunj. Transport from Zagreb or Plitvice is available on request.
Get a wetsuit, neoprene shoes, helmet, life vest and a waterproof barrel, then a short briefing on technique and how to run the drops.
Around three hours on the river in two-person sit-on-top kayaks, floating calm sections and dropping over small travertine waterfalls.
Stops to swim and jump from rocks along the way.
Take out downstream and ride back to the base, about four hours after you started.
Mrežnica kayaking questions
Ready to paddle the waterfalls?
Book a guided waterfall kayak trip on the Mrežnica, near Slunj, with wetsuit and gear included.
