Kayaking on Upper Mreznica River – Slunj, Croatia

The best part of this Mrežnica River kayak trip is that the waterfalls are not just scenery. You paddle over some, slide down others, jump into lower pools, or walk around a cascade when needed. The river keeps changing, from calm green pools to short bursts of white water.

I like the warm swimming pools and the choice of ways to handle each fall. I also like that beginners and children from age six can join, with kayaks, safety gear, guides, and local transfers included. The main thing to consider is group size: one account describes a group much larger than others on the river, and the drive from the base to the launch point can add time.

Key points

• Up to 15 waterfalls: Paddle, slide, jump, swim, or walk around the travertine cascades.
• Warm river pools: The falls form calm pools that are good for a refreshing swim.
• Beginner-friendly action: Instruction and safety equipment are provided, and children from age six may participate.
• Guides who stay involved: Denis, Dennis, and Alex are praised for patience, safety help, and support at the drops.
• Convenient base near major sights: The meeting point is about 30 minutes from Plitvice Lakes and 1.5 hours from Zagreb.
• Good value at $65.33: The price covers equipment, taxes, guides, and local transfers, but not transport to the base, food, drinks, or photos.

Why the Mrežnica River feels different

Plitvice Lakes gets the attention, but the Mrežnica offers a more active way to experience Croatia’s water. Here, the river moves through a wild canyon lined with travertine formations and a chain of small falls. The highest waterfall on this route is about 8 meters.

You are not simply sitting in a kayak and watching the river pass. The falls form a natural obstacle course. Some are gentle enough to paddle over. Others can be handled as natural waterslides, with a jump into the pool below, or by walking around the cascade.

That choice is important. You do not need to be a hard-charging paddler to enjoy this trip. If a drop looks too lively, you can use another route. At the same time, people who want more action get plenty of chances to ride the water, jump, and work through short rapids.

The river’s middle section is calmer. That gives you time to paddle, look around, and notice the quieter details, including dragonflies and, if you are lucky, turtles. The beginning and end are described as the most active parts, so expect the trip to build and finish with more excitement than the central stretch.

Meeting at Kupa Sports in Tounj

The activity begins at Kupa Sports White Water Adventure, at the Kupa Sports rafting and kayaking base on Tržič Tounjski 91, 47264, Tounj. The base is listed as about 30 minutes from Plitvice Lakes and about 1.5 hours from Zagreb.

That location makes the tour a useful add-on to a Plitvice visit, especially if you have a car or are arranging your own way to the base. The price does not include transport to and from the attraction, so you need to get yourself to the meeting point. Local transfers during the activity are included.

When you arrive, you receive the necessary equipment and a safety briefing. Neoprene suits are available if needed, which matters on cooler days or when you expect to spend plenty of time in the water. You also receive paddling instructions before heading to the river.

The base has a changing room, a place to rest, and an option to buy drinks. Bottled water is not included, so plan around that. Lunch is also not part of the price.

The drive to the launch point

After the briefing, the group is driven to the start of the river section. This transfer is included, but it is worth understanding the timing. One account found the launch point a fairly long way from the base, making the full outing take longer than expected.

The advertised duration is about three hours. That includes the preparation, local transfer, time on the river, and the return to the base, so the actual paddling portion may not fill the entire three hours. If you have a tight schedule after the activity, leave some extra room rather than booking another fixed appointment immediately afterward.

The group can contain up to 20 people. That is a reasonable maximum for an outdoor activity, but it is not a small private outing. Group size may shape the pace at the falls, especially when several kayaks need to approach the same drop.

Riding the first waterfalls

The early section gets you into the action quickly. You may paddle down smaller falls, pass through short rapids, or use the river’s natural slides. The guides explain how to approach each section and can help you decide how much action suits you.

The tandem kayaks are described as comfortable, which is useful for couples, friends, and families who prefer to paddle together. The route still requires cooperation. You need to listen to the guide, follow instructions, and work with your partner when approaching a fall.

This is where the guide can make a real difference. Denis and Dennis are both named in the feedback, with Alex also assisting on one family outing. The most useful praise is not about jokes or personality. It focuses on practical help: staying attentive, giving support at the drops, and letting confident paddlers handle sections independently.

That balance is what you want from a guide on a river like this. You should get clear help when it is needed, without having every move taken out of your hands.

Warm pools, jumps, and natural slides

The Mrežnica’s travertine waterfalls create pools between the falls. These pools are warmer than you might expect from a river setting and provide natural places to cool off. You can swim beneath some waterfalls, jump into lower pools, or simply paddle through the calmer water.

The jumping is optional. That makes the experience workable for a mixed group, where one person wants to leap from a rock and another would rather stay in the kayak. The same applies to the slides. Some people will want to ride the water over a fall, while others may prefer to walk around it.

You should expect wet clothing from the start. Even if you avoid the bigger jumps, the route involves water, splashes, and waterfalls. Bring dry clothes for the end of the tour. Once you return to the base, you can change before leaving.

The wildlife adds a quiet touch to the action. Dragonflies appear around the water, and turtles may be visible along the river. These small details help break up the faster sections and make the trip feel like more than a series of obstacles.

The calmer middle stretch

The middle part of the route offers a change of pace. After the first active section, you get more peaceful paddling through the canyon. This is the time to enjoy the differently colored pools and the surrounding natural setting without having to focus on the next drop.

I like this rhythm. A three-hour activity made entirely of rapids and jumps could become tiring, especially for children or first-time kayakers. The quieter section gives your arms a break and lets you take in the river.

It also gives the guide a chance to keep the group together. The river can feel more relaxed here, but you still need to pay attention to instructions and stay with your paddling partner. The route is beginner-friendly, not instruction-free.

Finishing with more action

The final section returns to the more active character of the opening. You may encounter additional falls, short rapids, and opportunities to use the kayak as you pass over the water. The route includes up to 15 travertine waterfalls in all, though the exact feel of the trip depends on water conditions and how the group handles each feature.

At the end, the group returns to the base by local transfer. You can change into dry clothes there. Photos are not included, so do not assume that a photo package is part of the activity. Gratuities are optional.

The finish is practical rather than elaborate. This is an outdoor half-day activity, not a full resort-style outing with a meal or long stop afterward. That is fine if you pack a snack or plan lunch separately.

What the $65.33 price covers

At $65.33 per person, the tour is priced as an accessible way to get a guided river adventure near Plitvice. The important value comes from what is included:

• Kayak and necessary safety equipment
• Neoprene suit when needed
• Licensed guides
• Local transfers from the base to the river and back
• All fees and taxes

You still need to budget for transport to the meeting point, lunch, bottled water, optional gratuity, and tour photos. The missing meal is not a major issue, since the experience lasts about three hours, but you should bring or arrange food for before or after.

The price makes the most sense if you are already visiting the Plitvice area and can reach Tounj without paying for a separate transfer. It is less convenient if you are relying on public transport, since getting to the base is your responsibility.

Who should book this river trip

This is a strong choice for couples, families, and first-time kayakers who want more action than a quiet lake paddle. The minimum age is six, and the route gives you several ways to take part, from calm paddling to swimming, sliding, and jumping.

It also suits active visitors staying near Plitvice Lakes who want a second nature experience. You will see a different side of the region, one shaped by waterfalls and moving water rather than still pools and boardwalks.

You should think twice if you dislike getting wet, do not want to share a group experience, or need a tightly timed schedule. The maximum group size is 20, and one account describes a group that felt too large. The launch transfer can also add time.

The activity requires good weather and a minimum number of participants. If poor weather causes cancellation, you are offered another date or a full refund. The same applies if the minimum number is not reached. You can cancel for a full refund up to 24 hours before the start time, but changes or cancellations inside that window are not accepted.

Should you book kayaking on the Upper Mrežnica?

I would book this if you want a lively, water-based outing near Plitvice and like having choices about how adventurous to be. The combination of warm pools, up to 15 waterfalls, natural slides, and beginner-level instruction gives the trip more variety than a standard guided paddle.

The main decision is not the river. The river sounds excellent. It is the operation’s group size and timing. If you want a quieter outing, confirm the expected group size before booking. If you can accept a shared trip and allow extra time for the launch transfer, $65.33 is a fair price for the equipment, guides, and local transport included.

FAQ

Where does the kayaking experience start?

It starts at Kupa Sports White Water Adventure, Tržič Tounjski 91, 47264, Tounj, Croatia.

Where does the activity end?

The activity ends back at the Kupa Sports meeting point.

How long does the kayaking tour last?

The experience lasts approximately three hours, including preparation, local transfers, river time, and the return to the base.

How many waterfalls will I pass?

The route includes up to 15 travertine waterfalls. The highest waterfall is about 8 meters.

Can beginners join the tour?

Yes. Beginners can participate, and paddling instructions are provided before the river section.

What is the minimum age?

Children from age six are welcome to join.

Is equipment provided?

Yes. Necessary equipment is included, along with safety gear and neoprene suits when needed.

Is transport included?

Local transfers during the activity are included. Transport to and from the meeting point is not included.