
Tunnel of Eupalinos
A 6th-century BC aqueduct tunnel, excavated from both ends, showcasing ancient Greek engineering brilliance.

Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Cooler temperatures & fewer crowds

Tunnel of Eupalinos
Best Time
Cooler temperatures & fewer crowds

Highlights
Must-see attractions
A 6th-century BC aqueduct tunnel, excavated from both ends, showcasing ancient Greek engineering brilliance.
"A must-visit for its incredible ancient engineering and cool escape from the Samos heat!"

🎯 Go Early to Beat Heat
Arrive at opening time for cooler temps and fewer people. Taxi recommended for direct access.
👟 Wear Sturdy Shoes
The path can be uneven; comfortable, closed-toe shoes are essential for safety.

Highlights
Discover the most iconic attractions and experiences

The Engineering Marvel
Tunnel interior
Witness 6th-century BC ingenuity where engineers dug from both ends, meeting with remarkable accuracy.

Ancient Aqueduct System
Tunnel entrance and interior
Explore the 1,036-meter tunnel, a testament to ancient Greek water management and construction skills.

Panoramic Island Views
Path to/from the tunnel
Enjoy breathtaking views of Samos and Pythagoreio as you ascend or descend the path.
Plans like a pro.
Thinks like you
Planning Your Visit
Beat the Heat and Crowds
History Buffs, Prepare!
Best Times
Insider Tips
from TikTok, Instagram & Reddit
🎯 Go Early to Beat Heat
Arrive at opening time for cooler temps and fewer people. Taxi recommended for direct access.
👟 Wear Sturdy Shoes
The path can be uneven; comfortable, closed-toe shoes are essential for safety.
⛑️ Helmet Provided
Helmets are mandatory due to low ceilings. Hairnets are also provided for hygiene.
📚 Research History Before
Guides are present but not informative. Learn about the engineering beforehand.
Tips
from all over the internet
🎯 Go Early to Beat Heat
Arrive at opening time for cooler temps and fewer people. Taxi recommended for direct access.
👟 Wear Sturdy Shoes
The path can be uneven; comfortable, closed-toe shoes are essential for safety.
⛑️ Helmet Provided
Helmets are mandatory due to low ceilings. Hairnets are also provided for hygiene.
📚 Research History Before
Guides are present but not informative. Learn about the engineering beforehand.
💰 Consider the Fee
Entrance is €10. Some visitors felt it could be cheaper given the duration and accessible length.
What Travellers Say
Reviews Summary
Visitors praise the Tunnel of Eupalinos as a remarkable feat of ancient Greek engineering and a must-see on Samos. The cool interior offers a welcome escape from the heat, and the historical significance is widely appreciated. Some find the entrance fee a bit high for the accessible portion, and recommend researching the history beforehand as guides are not informative.
"If you’re visiting Samos, I highly recommend going to Tunnel of Eupalinos. It shows the great engineering skills that’s been on this island for thousands of years. Also a plus that the cutest little kitten came running to tell you all about the history of the place.
Here is my recommendation (and the route I took).
Start your day early so it’s not too hot (it will be hot regardless, but the earlier the better).
Take a taxi to the Tunnel of Eupalinos, and be there when it opens. First trip down is 8:40. If you’re afraid of heights and tight spaces, this might not be for you. But the safety person following you down is super friendly and will take it slow if you get scared.
When you get back up, follow the road back and at one point you’ll come to a sign that shows you the way to the Ancient Theater of Pythagoreio. Go by here, take some pictures, and continue your way upwards.
There are plenty of seats on your way up, so if you get tired - take a seat and watch the view. You will get to the top and see the beautiful Panagia Spiliani Monastery. Here you will be greeted by cats and find serenity. Walk around for a bit, then find a seat to have some water and a short meditation on the beauty of this island.
Then start your walk down towards the town of Pythagoreion. Here there are many cute stores you can browse (and maybe buy some things to bring home). Plenty of good eateries. And also more history to be experienced. I recommend having a coffee and brunch at Hygge, before running through all the stores. Then visit the Archeological museum. And finish with a dessert at Two spoons before you find your way back to wherever you’re staying at the island."
Cecilie T
"Great way to beat the heat, nice in cool in the tunnel, and the history is just as cool.🤯
You must wear a helmet before entering, which is necessary since everyone hit their helmet on a rock. Helmet and hairnet is provided"
Joe Savoie
"€10 for entrance. It a good experience, a lady took us down the tunnel but they are not information guides so look up the history before you arrive. Didn't go into the cave to far, as some of it is closed off to it being unsafe. Wear proper shoes. Would have given it 5 stars but think it could have been a bit cheaper due to the time we were in there and how far we went in the tunnel."
njs
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
The most convenient way is by taxi from Pythagoreio or Samos Town. Some visitors recommend starting your day early and taking a taxi directly to the tunnel entrance. While there's a path from Pythagoreio, it can be a hot and long walk, especially in summer.
Yes, there is parking available near the entrance, which is convenient if you are driving yourself. However, taxis are often recommended for ease of access and to avoid navigating unfamiliar roads.
Yes, you can walk, but it's a significant hike, especially in the heat. It's best to start very early if you plan to walk. The path offers scenic views but requires good physical condition.
Samos is accessible by ferry from mainland Greece and other islands, or by plane to Samos International Airport (SMY). Once on the island, renting a car or using taxis are popular options for reaching the tunnel.
Public bus routes may not directly serve the tunnel entrance. It's advisable to check local bus schedules, but taxis or private transport are generally more reliable for reaching this specific site.
🎫 🎫 Tickets & Entry
The entrance fee is €10 per person. Some visitors have noted that while it's a unique experience, they felt the price could be slightly lower considering the duration and the accessible portion of the tunnel.
The tunnel typically opens early in the morning, around 8:40 AM, and operates throughout the day. It's best to confirm the exact hours closer to your visit, as they can vary seasonally.
Advance booking is generally not required. Tickets can be purchased upon arrival. However, arriving early, especially during peak season, is recommended to avoid potential queues.
The tunnel involves walking through a confined, underground space. Those who are claustrophobic or have a severe fear of heights might find it challenging. A safety person accompanies visitors, and they can go at a slower pace if needed.
The ticket includes access to the accessible part of the tunnel and a mandatory helmet. A hairnet is also provided for hygiene. While a person accompanies you, they are not a formal tour guide.
🎫 🧭 Onsite Experience
Comfortable, closed-toe shoes are a must due to the uneven terrain. Light clothing is advisable as it can still get warm, though the tunnel itself is cool.
Most visitors spend about 30 minutes to an hour exploring the accessible sections of the tunnel. The actual walk through the tunnel is relatively quick, but you might take time to absorb the history and atmosphere.
The accessible parts are considered safe, with helmets provided for head protection. Some sections are closed off due to safety concerns. A safety attendant accompanies visitors.
Photography is generally allowed inside the tunnel. However, be mindful of the lighting conditions and ensure you don't obstruct others.
Constructed in the 6th century BC, it's a remarkable example of ancient Greek engineering, serving as an aqueduct. It's one of the few tunnels known to have been excavated from both ends simultaneously.
📸 📸 Photography
The entrance area offers a good perspective of the tunnel's scale. Inside, focus on the architectural details and the play of light and shadow. The path leading to and from the tunnel also provides stunning panoramic views for landscape shots.
Yes, it can be quite dark inside, so a camera with good low-light performance or a tripod might be beneficial. Many visitors use their phone cameras, which are often sufficient for capturing the atmosphere.
Capture the impressive stonework, the narrow passages, and the sheer scale of the ancient construction. Don't forget to photograph the surrounding landscape from the path for a broader view of Samos.
Generally, photography is permitted. However, always be respectful of other visitors and avoid using flash in a way that might disturb them or damage any sensitive areas.
Early morning or late afternoon can offer softer light, especially for exterior shots and the surrounding views. Inside the tunnel, the lighting is consistent, but capturing the depth might be easier with a wider aperture.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
While the tunnel is fascinating, parents should be aware that it involves walking through confined spaces. If your children are prone to being scared of the dark or tight areas, it might be a bit challenging. However, the accompanying safety person can go at a slower pace. Encourage kids to imagine what life was like when this aqueduct was in use – it’s a great way to bring history to life!
🚶♀️ History Enthusiasts & Archeology Buffs
To maximize your visit, do some pre-trip research on Eupalinos of Megara and the historical context of Samos during the 6th century BC. This will allow you to fully grasp the technical brilliance and historical importance of what you are witnessing. The experience offers a tangible connection to the past, showcasing the advanced capabilities of ancient civilizations.
🚶♂️ Budget Travelers
Opting for a taxi might seem more expensive upfront, but if you're traveling with a group, splitting the cost can make it more economical than individual bus fares or the hassle of navigating public transport. Alternatively, if you're up for a significant hike and have the time, walking from Pythagoreio can save on transportation costs, but be prepared for the heat and exertion.
Deep Dives
In-depth insights and expert knowledge
Ancient Engineering Prowess
This underground channel, stretching over 1,036 meters, showcases the ingenuity of Eupalinos of Megara, the chief engineer. The tunnel's design incorporated a gentle slope to facilitate water flow, and its construction involved meticulous calculations to ensure the meeting point was accurate. The fact that it was built without modern technology, relying on basic tools and geometric principles, highlights the extraordinary capabilities of ancient civilizations.
Visitors today can walk through a portion of this historic aqueduct, experiencing firsthand the scale and precision of this ancient undertaking. The cool, dark interior offers a unique atmosphere, allowing one to contemplate the immense effort and skill involved in its creation. It stands as a powerful reminder of the enduring legacy of ancient Greek innovation.
Visiting the Tunnel: Practicalities and Experience
Upon arrival, you'll be provided with a helmet, which is essential due to the low ceilings in parts of the tunnel. While a person accompanies visitors through the accessible section, they are not formal guides. Therefore, it's highly beneficial to research the tunnel's history and significance beforehand to fully appreciate the experience. Wear comfortable, closed-toe shoes, as the ground can be uneven.
The entrance fee is €10, and while many find it a worthwhile experience, some reviewers suggest it could be more affordable given the duration and the portion of the tunnel that is open for exploration. The tunnel itself offers a cool escape from the Samos sun, making it a pleasant visit even on a hot day.



Social
from TikTok, Instagram & Reddit