Explore Croatia’s Gacka River – ideal for fly fishing, kayaking, and nature escapes. Discover top tips, where to stay, and what to see.

Tucked away in the green heart of Lika, the Gacka River is one of Croatia’s best-kept secrets. Known for its cold, crystal-clear waters, gentle flow, and world-famous trout, this serene river is a haven for fly fishers, kayakers, and anyone seeking a peaceful escape into nature. Surrounded by rolling hills and traditional wooden mills, Gacka offers not just breathtaking scenery but a glimpse into Croatia’s rural soul. Whether you’re here to cast a line, paddle in silence, or simply unwind by the water, the Gacka River promises a slow-paced, soul-soothing experience.

About the Gacka River

The Gacka River is a rare gem in the rugged landscape of Croatia’s Lika region. Flowing quietly through a broad, green valley beneath the mighty Velebit mountain, Gacka is one of the few rivers on the Lika plateau. Despite being nestled in the rocky, karst terrain that defines much of southern Croatia, the Gacka meanders gently through fertile flatlands known as a polje—a lush plain surrounded by hills and mountains.

Stretching for 11 kilometers, Gacka is famous for its emerald lake springs that rise from deep underground caverns. The most beautiful among them are Tonkovića vrilo and Majerovo vrilo, the latter home to a cluster of traditional wooden watermills, still standing as a tribute to the river’s once vital role in rural life.

Gacka is also Croatia’s longest “lost river”, a term for rivers that disappear underground at the edge of the polje. Although its natural course was sadly altered by hydropower development, turning its once spectacular waterfalls in Švica into a quiet lake, the upper course of the river remains a peaceful paradise. Just a short drive from Sjeverni Velebit and Plitvice Lakes national parks, Gacka makes a perfect stopover for nature lovers, fly fishers, and travelers in search of quiet beauty.

Fly Fishing & Trout in the Gacka River

The Gacka River is a paradise for fly-fishing enthusiasts—and one of the most iconic trout waters in Europe. With its crystal-clear, oxygen-rich waters and steady temperature, Gacka creates an ideal environment for trout to thrive. Lush aquatic vegetation—mosses, algae, and submerged plants—supports a rich population of aquatic invertebrates, forming a perfect menu for fish.

The star of the show here is the brown trout (Salmo trutta), known to grow 5–7 times faster in Gacka than in other trout waters around the world. Thanks to this unique ecosystem, trophy specimens often reach up to 5 kg, making the Gacka River a true mecca for passionate anglers.

🎣 Best Fishing Zones on the Gacka River
The river is divided into several fly-fishing zones, each with its own character and charm:

• Zone I – from Tonkovića vrilo to Vivoze Bridge: This upper stretch is known for clear visibility and high trout density. One of the most popular zones.
• Zone II – from Vivoze to the village of Prozor: Slightly wider riverbed, peaceful surroundings, and great for patient anglers.
• Zone III – near Majerovo vrilo: Especially picturesque with traditional wooden mills in the background.
• Švički Branch: A smaller offshoot offering a more intimate fly-fishing experience.

🎫 Fishing Permits and Prices (as of 2025):

• 1-day permit: €35
• 3-day permit: €75
• 7-day permit: €150
• Annual permit (for Croatian citizens): €200

Permits are available online through the Gacka fishing club or at local tourist offices, hotels, and shops in the town of Otočac, which serves as the gateway to the river.

🔍 Good to Know:

• Fly-fishing only – spinning and other methods are not allowed.
• Catch & release is encouraged, especially for large trout.
• A guide is recommended for first-timers (around €50–€100 per session).

Whether you’re here for sport or simply for the peace of casting in one of Croatia’s most serene landscapes, fly-fishing on the Gacka River is a bucket-list experience for anglers worldwide.

Gacka’s Magical Springs & Historic Watermills

The Gacka River begins its journey from a series of enchanting karst springs, the most famous of which are Tonkovića vrilo and Majerovo vrilo. These emerald-green sources bubble up from deep underground aquifers, forming calm, clear pools that are almost surreal in their beauty. Surrounded by meadows and forests, they offer a peaceful, timeless atmosphere—especially in the early morning when mist dances over the water’s surface.

Tonkovića vrilo is the largest spring and often the first stop for visitors. The water here is remarkably pure and cold, creating perfect conditions for trout and aquatic life. Nearby, you’ll find information boards, footbridges, and benches for soaking in the tranquil views.

Just a few kilometers away lies Majerovo vrilo, perhaps the most picturesque spot on the Gacka. What makes it special isn’t just the clarity of the spring—it’s the charming wooden watermills that line its banks. These traditional mills have stood here for centuries, once used for grinding grain with the help of the river’s steady flow. A few have been lovingly restored and are still functioning today, offering visitors a rare glimpse into the region’s rural heritage.

You can step inside some of the mills, learn how flour was made the old-fashioned way, and even buy local products like cornmeal or herbal teas. The area around Majerovo vrilo is also ideal for a leisurely walk or a photo session—the reflections of the mills in the clear water are truly postcard-perfect.

📸 Tips for Visiting:

• Early morning and late afternoon offer the best light for photography.
• The springs are easily accessible by car or bike from the town of Otočac.
• There’s no entrance fee, and parking is usually free near both locations.
• Please respect the quiet and leave no trace—these are delicate ecosystems and cultural treasures.

Visiting Tonkovića and Majerovo vrilo is like stepping back in time. It’s where nature, tradition, and tranquility come together in one of Croatia’s most peaceful corners.

How to Get to the Gacka River

The Gacka River is located in the Lika region of central Croatia, near the town of Otočac, which serves as the main base for exploring the river and its surroundings. Despite its peaceful, off-the-beaten-path setting, Gacka is surprisingly easy to reach.

🚗 By Car
The best way to reach Gacka is by car, giving you the flexibility to explore the scenic countryside and river springs at your own pace.

• From Zagreb: Around 2 hours (approx. 150 km) via the A1 motorway. Take the Otočac exit and follow signs toward the town.
• From Zadar: Around 1.5 hours (approx. 120 km), also via the A1 motorway.
• From Plitvice Lakes National Park: Around 45 minutes (approx. 60 km) through local roads, making Gacka an ideal detour or overnight stop.

🚍 By Bus
Otočac is connected by regional buses to major Croatian cities, including Zagreb, Zadar, Rijeka, and Gospić. From Otočac, you’ll need a taxi or bicycle to reach the springs and fishing zones, which are about 5–10 km outside the town.

✈️ By Air
The closest airports are:

• Zagreb Airport (ZAG) – 2 hours by car
• Zadar Airport (ZAD) – 1.5 hours by car
  From either airport, rent a car for the most convenient access to the Gacka River region.

🚲 By Bike
For the adventurous, Gacka is part of several scenic cycling routes in Lika. The countryside is mostly flat and perfect for easy rides between the springs, mills, and fishing spots.

🗺️ GPS Coordinates

• Majerovo vrilo: 44.8578° N, 15.2942° E
• Tonkovića vrilo: 44.8615° N, 15.3140° E

Whether you’re coming for the fly-fishing, nature walks, or simply to relax by the water, getting to Gacka is part of the charm—off the main tourist track, but deeply rewarding.

Where to Stay Near the Gacka River

The Gacka River region is all about peace, nature, and rustic charm—and the accommodation options reflect that. You won’t find big resorts here, but rather cozy guesthouses, countryside cottages, and family-run B&Bs that immerse you in the tranquil Lika lifestyle.

🏡 Rural Guesthouses & Holiday Homes
Many local families have opened their charming homes and traditional wooden cottages to travelers, offering warm hospitality and home-cooked meals (often including freshly caught Gacka trout!).

• House Majer – Near Majerovo vrilo, this beautifully restored wooden house sits right by the river, perfect for fishing lovers and nature photographers.
• Holiday House Tonković – A peaceful riverside stay near Tonkovića vrilo, with lovely views and BBQ facilities.
• Gacka Rooms – A simple and comfortable guesthouse in Otočac, ideal for short stays or fishing trips.
• Villa Gacka – Offers more modern comforts while still preserving a rural, relaxed feel—great for families or small groups.

🏨 Hotels in Otočac
If you prefer staying in town with easy access to shops, cafes, and services:

• Hotel Park Exclusive – A 4-star hotel in Otočac with a restaurant, wellness area, and comfortable rooms. Good for couples and families.
• Hotel Zvonimir – A smaller, more budget-friendly hotel in the center of Otočac with basic amenities and friendly service.

⛺ Camping Options
For those who love the outdoors, small private campsites and wild camping-style stays are also available around the Gacka Valley. Look for agritourism farms that allow tents or campervans on their land.

📌 Tips

• Booking in advance is recommended in summer and on weekends.
• Many accommodations cater to anglers with special facilities like fishing storage, guides, and permits.
• Some houses are riverside with private access—perfect for a morning cast or an evening stroll.

Whether you’re looking for rustic charm or a comfy hotel base, staying near the Gacka River is all about slowing down and soaking in the peace of Lika’s hidden heart.

While the Gacka River is the main draw, the surrounding region offers a surprising number of things to see and do—perfect for a day trip or a slow-paced adventure through Lika’s green heart.

🏘 Otočac Town
The main hub of the Gacka Valley, Otočac is a small but charming town where you’ll find essential amenities, cozy cafés, and local eateries. Stop by the Gacka Museum, housed in the old town hall, to learn about the area’s rich cultural heritage, traditional crafts, and river ecology. The town also has several old churches, quiet streets, and a riverside promenade that makes for a pleasant afternoon walk.

🏞 Sjeverni Velebit National Park (30–40 min by car)
One of Croatia’s most breathtaking national parks, Northern Velebit is a haven for hikers and nature lovers. Trails like Premužić’s Trail offer stunning views of the Adriatic Sea and Velebit peaks. It’s a stark contrast to the gentle Gacka Valley and makes a perfect day trip if you want a mix of gentle river life and alpine wilderness.

🏞 Plitvice Lakes National Park (45 min–1 hour by car)
Croatia’s most famous natural attraction needs no introduction. With its cascading waterfalls and turquoise lakes, Plitvice is an unmissable UNESCO World Heritage Site—and it pairs perfectly with a stay in the Gacka region for a quieter, more affordable base.

🏰 Kuterevo Bear Refuge (20–25 min by car)
This heartwarming project in the nearby village of Kuterevo is dedicated to caring for orphaned brown bears. Run by volunteers, the refuge offers a close (but safe) look at these majestic animals while promoting nature conservation and traditional village life.

🌳 Fortica Hill Viewpoint & Gacka Valley Panoramas
A short drive or hike from Otočac leads you to scenic viewpoints like Fortica Hill, which overlooks the entire Gacka Valley. Perfect for sunset photography or a peaceful picnic.

🛶 Ličko Lešće & Sinac Villages
These sleepy riverside villages are full of rustic charm, wooden mills, and quiet trails. Great for leisurely exploring by foot or bike. Don’t miss the wooden bridges and small chapels tucked away in the fields.

🪵 Traditional Mills & Rural Life Museums
Several restored watermills in the area, particularly around Majerovo vrilo, are open to visitors and often include small ethnographic exhibits or souvenir shops selling homemade flour, honey, and herbal products.