Nestled in the lush, tranquil landscapes of the Marmara region, Yalova is more than just a gateway to the sea; it is a sanctuary for botanical enthusiasts. Beyond its healing thermal springs and cascading waterfalls, the region boasts a unique natural heritage: the Karaca Arboretum. Located on the Yalova-Termal highway, this site holds the distinction of being Turkey's first private living tree museum. Established through the personal dedication of the late Hayrettin Karaca (affectionately known as "Toprak Dede" or Grandfather Earth), the founder of the TEMA Foundation, this garden is home to thousands of tree, shrub, and plant species gathered from across the globe. In this guide, we explore the arboretum's rich botanical collections, its scenic walking paths, essential visitor information, and the hidden hiking gems of Yalova.
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Quick Facts
| Topic | Details |
|---|---|
| Location | Yalova, Merkez, Samanlı village (on the Yalova-Termal road) |
| Highlight | Turkey's first private arboretum; a living tree museum |
| Founded | 1980, by Hayrettin Karaca (Toprak Dede) |
| Area | Approximately 135,000 m² (135 dönüm) |
| Plant Diversity | Roughly 7,000 trees, shrubs, and varieties |
| Visiting Hours | Approximately 10:00–17:00 (subject to seasonal changes) |
| Distance from Center | About 5 kilometers |
| Best Time to Visit | Spring (April–May) and Autumn (October) |
Where is Karaca Arboretum? Location and First Impressions
Karaca Arboretum is located within the boundaries of Samanlı village on the Yalova-Termal highway, just 5 kilometers from the center of Yalova. According to local resources, the garden is easily accessible via a short drive from the city center toward the Termal district. This proximity makes it a perfect stop for day-trippers or those planning to combine a botanical visit with a trip to the Termal hot springs.
From the moment you enter, the man-made ponds, stone-paved paths, and shaded tree tunnels signal that this is no ordinary park. The landscape architecture is designed as a journey, guiding visitors through a seamless transition of species and microclimates. Walking through the garden, you feel instantly insulated from the noise of the city, immersed in a serene botanical sanctuary. The first impression is one of an outdoor living collection that captures the very essence of Yalova's verdant identity.
Toprak Dede's Green Legacy: The History of the Arboretum
Karaca Arboretum was founded in 1980 by Hayrettin Karaca. Spanning approximately 135 acres, the garden was never intended to be an amusement park; rather, it was designed as a living museum open to scientific study, bringing together endangered and precious tree species. His nickname, "Toprak Dede," serves as a testament to a life dedicated to the soil and the trees.
Hayrettin Karaca and the TEMA Foundation Connection
Hayrettin Karaca is a legendary figure in Turkey regarding erosion control and soil conservation, being one of the founders of the TEMA Foundation. He began creating the arboretum through personal effort, expanding the garden of his own summer villa. In this sense, the garden is seen less as a corporate project and more as the physical embodiment of one man's profound connection to nature. Understanding this story adds a layer of meaning to every tree you encounter during your visit.
What is a "Living Tree Museum"?
An arboretum is a specialized botanical garden where trees and woody plants are collected, labeled, and preserved for scientific purposes. Karaca Arboretum fulfills this role perfectly, offering internship opportunities to university students and fostering botanical awareness among the public during visiting hours. The garden is recognized and cited among notable arboretums in international dendrology (the study of trees) circles. Essentially, every tree here serves as a resource for both education and research.
Botanical Collections and Landscape Design
The heart of the garden lies in its vast botanical collection. Sources indicate that the arboretum houses approximately 7,000 different trees, shrubs, woody plants, subspecies, and varieties. For a compact garden like this, the level of diversity is remarkably high, making it a rewarding destination for plant enthusiasts.
Trees from Around the Globe
As you wander through the grounds, you will encounter specimens from diverse geographies: from rare pine species native to Asia to the massive sequoias of the Americas; from the vibrant cherry blossoms (sakura) of Japan to the endemic oaks of Anatolia. This coexistence of species allows visitors to experience multiple climate zones in a single, short walk. The blooming magnolias and cherry trees in spring create one of the garden's most photogenic periods, so tracking the flowering calendar between March and May can significantly enhance your experience.
Ponds, Paths, and Landscape Artistry
Beyond the collection itself, the garden's layout is a visual experience. Artificial ponds, stone paths, and plant tunnels guide visitors along curated routes. When the seasonal colors reflect off the water's surface, the garden offers stunning compositions for photography. We recommend maintaining a slow walking pace to both read the species labels and appreciate the finer details of the landscape design. This thoughtful arrangement successfully blends scientific function with aesthetic beauty.
Visitor Information: Hours, Entry, and Guided Tours
Because Karaca Arboretum houses a sensitive scientific collection, certain rules apply to all visitors. The garden is an outdoor museum to be preserved, not a picnic area; therefore, planning your visit in advance is highly recommended.
Visiting Days and Hours
Official sources list the visiting hours as approximately 10:00–17:00. While general visits are common, certain days may be reserved for research groups or school tours. Since hours can change seasonally, it is wise to check the arboretum's latest announcements before heading out. Please note that entry requires a fee to support the garden's maintenance, and the Museum Pass (Müze Kart) is not valid here.
Guided Tours and Garden Etiquette
To protect these rare plant species, visitors are encouraged to explore in groups led by expert botanical guides rather than wandering freely alone. These guided tours typically last about an hour and provide insightful information about the various species. To preserve the collection, food, drinks (other than water), and pets are not permitted inside the garden. A small buffet and a parking area are available at the entrance for your convenience. These regulations are in place to ensure the long-term survival of the collection and to provide a more organized experience.
Yalova's Best Hiking Routes
After soaking in the tranquil atmosphere of the arboretum, you can expand your itinerary with Yalova's more rugged and natural hiking trails stretching into the Samanlı Mountains. Yalova offers a wide spectrum of paths, from easy strolls to challenging trekking routes. For those looking to plan a trip centered around nature and adventure, exploring nature and adventure tours is a great way to find the perfect route.
Delmece Yaylası Trail
Located in the mountains surrounding Çınarcık, Delmece Yaylası is a favorite among trekking enthusiasts due to its pine forests, mineral water springs, and deep valley paths. Recognized in regional hiking resources as a more demanding route, it is ideal for hikers seeking elevation and dense forest scenery. The area is particularly popular in the summer due to its cool air; however, because the terrain can be steep, sturdy hiking boots and plenty of water are essential.
Erikli Waterfalls Route
Near the Erikli area, you will find riverside paths featuring two-tiered waterfalls connected by charming wooden bridges. This route offers a moderate-difficulty hike and a wonderful opportunity for nature photography. Because the water flow increases with snowmelt in the spring, the period between April and May is the most spectacular time to visit. Be careful when crossing bridges and paths, as rocks can be quite slippery.
Sudüşen Waterfall Route
Part of the official hiking routes identified by Yalova Municipality, the Sudüşen Waterfall trail near Üvezpınar village offers a longer trek of approximately 16–17 kilometers. Passing through forest paths, this route is best suited for experienced hikers as it can easily take up an entire day. Due to the distance, we recommend starting early, carrying sufficient snacks and water, and monitoring the weather for your return journey.
Easy Walks around Yürüyen Köşk and Termal
For those seeking a more relaxed pace, the area around Yürüyen Köşk in central Yalova and the lush greenery of the Termal hot springs are perfect for short, flat walks. Local authorities also recommend these spots for easy walking options. Additionally, the area around Hersek Lagoon is a fantastic natural space for birdwatching and peaceful, level-ground strolls. These routes are practical alternatives for families or visitors with limited time.
How to Get to Karaca Arboretum
Accessing the arboretum is quite convenient, as it sits directly on the Yalova-Termal highway, only 5 kilometers from the city center. You can reach the garden quickly via minibuses or taxis heading from the city center toward Termal. If you are driving, there are directional signs along the road and ample parking available at the entrance.
For those traveling from Istanbul, the ferry is a comfortable option. High-speed ferries from Yenikapı or Pendik can get you to the Yalova pier in about an hour; from there, a short transfer toward Termal will take you to the arboretum. If you are driving, you can use the Eskihisar-Topçular car ferry line. If you want to plan your Yalova trip alongside other cultural and natural landmarks, consider exploring the options in our culture tours section.
The Best Season for a Yalova Nature Trip
The most rewarding time to visit Karaca Arboretum and Yalova's hiking routes is during the spring months, when the gardens are in full bloom and the weather is mild. The period from late March to May is particularly vibrant, featuring blooming magnolias and cherry trees alongside increased waterfall flows. Autumn, specifically October, is also a lovely time to visit as the leaves change color, bathing the garden in warm, golden tones.
In the summer, central and low-altitude routes can become hot and humid; during this time, cooler high-altitude paths like Delmece Yaylası are preferable. Winter can make some routes difficult due to rain or mud, so checking the weather forecast is essential for a safe trip. Generally, spring offers the best balance of lush greenery and flowing water for both the arboretum and the hiking trails.
Dining and Accommodation in Yalova
To turn your nature excursion into a complete Yalova experience, it is worth planning your dining and accommodation in advance. The city offers excellent infrastructure for both day-trippers and those staying for several nights.
Dining
Yalova is known for its local flavors, influenced by the Marmara region and the surroundings of Lake İznik. In the Termal and Çınarcık areas, you can easily find delicious gözleme, mantı, and various grilled specialties. Establishments offering traditional village breakfasts are also common, making them perfect for a post-hike meal. Since food is not allowed inside the arboretum, we recommend planning your breakfast or lunch at a local restaurant either before or after your visit.
Accommodation
In Yalova, the Termal region is the standout choice for accommodation, famous for its thermal spa hotels—perfect for those wanting to combine nature with relaxation. In Çınarcık and the city center, you will find a variety of boutique hotels and pensions. The city's proximity to Istanbul also makes it an ideal spot for short, overnight getaways. As the region can get quite busy during weekends and holidays, booking your stay in advance is highly recommended.
Suggested Yalova Nature Itinerary
If you are short on time, it is possible to fit Yalova's top botanical and natural highlights into a single day. A suggested itinerary might look like this: Take an early ferry from Istanbul to Yalova and head directly toward Termal to enjoy a guided tour of Karaca Arboretum. After a lunch break, take a short stroll around the Termal area to experience the thermal atmosphere.
For those with more time, dedicate your second day to the Delmece Yaylası or the Erikli waterfalls; this allows you to experience both the serene botanical gardens and the dramatic mountain and waterfall landscapes in one trip. To plan your Yalova journey with a professional touch, you can compare all available options on our all tours page.
Frequently Asked Questions 6
What are the opening days and hours for Karaca Arboretum?
Official sources state that visiting hours are approximately 10:00–17:00. While general visits are common, certain days may be reserved for research groups or school tours. Since hours can change seasonally, it is wise to check for the latest updates before your visit.
Where is Karaca Arboretum located?
The arboretum is located within the Samanlı village area on the Yalova-Termal highway, about 5 kilometers from the center of Yalova. Its location on the road to the Termal hot springs makes it easy to combine both destinations in one trip.
Is it possible to visit the arboretum without a guide?
To protect the rare plant species, visitors are encouraged to explore in groups led by expert botanical guides rather than wandering freely alone. These guided tours typically last about an hour and provide valuable information about the plants.
Are food, drinks, or pets allowed in the garden?
As Karaca Arboretum is a living tree museum, food, drinks (other than water), and pets are not permitted inside. There is a small buffet and a parking area at the entrance, so we recommend planning your meals before or after your visit.
How can I get to Yalova from Istanbul?
You can reach the Yalova pier in about an hour using high-speed ferries from Yenikapı or Pendik. If you are driving, you can use the Eskihisar-Topçular car ferry line. From Yalova center, the arboretum is a short trip away by minibus or taxi.
Which hiking routes are most popular in Yalova?
Delmece Yaylası offers a challenging trekking experience, Erikli waterfalls provide a moderate-difficulty route, and the Sudüşen Waterfall trail offers a longer, more demanding trek of about 16–17 km. For easier, flatter walks, the area around Yürüyen Köşk and Hersek Lagoon is ideal.
