Float between travertine pools and run short, guided drops on a compact 3 km stretch of river near Slunj. This 3‑hour kayaking trip combines easy paddling, warm pools and 15 waterfalls — ideal for beginners and families.
Float between travertine pools and run short, guided drops on a compact 3 km stretch of river near Slunj. This 3‑hour kayaking trip combines easy paddling, warm pools and 15 waterfalls — ideal for beginners and families.
A bright, green corridor parts the karst plateau as you step into the Upper Mrežnica canyon. Water threads over travertine steps, pooling in glassy blue basins that dare you to drop in; your kayak rocks gently at the lip of a short cascade while the guide calls your line.
Verified experiences and guided adventures in the surrounding area.
Operated by Kupa Sports White Water Adventure · Slunj, Karlovac County
A bright, green corridor parts the karst plateau as you step into the Upper Mrežnica canyon. Water threads over travertine steps, pooling in glassy blue basins that dare you to drop in; your kayak rocks gently at the lip of a short cascade while the guide calls your line.
The Mrežnica cuts through limestone and travertine, building natural dams and 15 small waterfalls across just 3 km — a geological workshop of tufa formation and mineral-rich pools. The area around Slunj has long supported watermills and small river communities; local culture still centers on riverside life and simple hospitality. In summer the river hums with swimmers and paddlers; off season the canyon’s tones turn quieter and moss-green.
On the water you’ll alternate between easy float sections where you can scan the banks for kingfishers and steeper spots where guides run boats down cascades or skirt a walk-around. Expect short, controlled drops (the highest around 8 m, usually approached on foot), warm pools between falls, and frequent, clear eddies that reward simple strokes. Guides provide hard shells, paddles, helmets and neoprene when needed, and they stage individual runs on each waterfall to keep things safe and playful.
Practical tips: arrive with quick-dry layers, secure footwear, and a small dry bag; plan for a 3-hour outing including transfers; sunscreen and a light wind shell are smart. This trip suits beginners through seniors who can follow safety instructions and handle brief bursts of activity — a compact slice of Croatia’s wild water that’s equal parts scenic and sociable.
Yes. The river has calm stretches and guides teach basic paddling before the trip; guides manage waterfall runs to keep participants safe.
Water temperature varies by season; guides provide neoprene suits when conditions warrant, especially in spring and cooler months.
Children from about 6 years old are accepted; operators assess each child’s comfort and provide lifejackets and extra supervision.
Participants are driven back to base where there are changing facilities; plan to bring dry clothes and a towel.
Kupa Sports White Water Adventure operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




A bright, green corridor parts the karst plateau as you step into the Upper Mrežnica canyon. Water threads over travertine steps, pooling in glassy blue basins that dare you to drop in; your kayak rocks gently at the lip of a short cascade while the guide calls your line.
A bright, green corridor parts the karst plateau as you step into the Upper Mrežnica canyon. Water threads over travertine steps, pooling in glassy blue basins that dare you to drop in; your kayak rocks gently at the lip of a short cascade while the guide calls your line.
The Mrežnica cuts through limestone and travertine, building natural dams and 15 small waterfalls across just 3 km — a geological workshop of tufa formation and mineral-rich pools. The area around Slunj has long supported watermills and small river communities; local culture still centers on riverside life and simple hospitality. In summer the river hums with swimmers and paddlers; off season the canyon’s tones turn quieter and moss-green.
On the water you’ll alternate between easy float sections where you can scan the banks for kingfishers and steeper spots where guides run boats down cascades or skirt a walk-around. Expect short, controlled drops (the highest around 8 m, usually approached on foot), warm pools between falls, and frequent, clear eddies that reward simple strokes. Guides provide hard shells, paddles, helmets and neoprene when needed, and they stage individual runs on each waterfall to keep things safe and playful.
Practical tips: arrive with quick-dry layers, secure footwear, and a small dry bag; plan for a 3-hour outing including transfers; sunscreen and a light wind shell are smart. This trip suits beginners through seniors who can follow safety instructions and handle brief bursts of activity — a compact slice of Croatia’s wild water that’s equal parts scenic and sociable.