In short
- Closed-toe shoes are mandatory to walk on the crater floor.
- Pack light, breathable clothing and high-SPF sunscreen.
- Bring at least 1 to 1.5 liters of drinking water per person.
In this article
Preparing for your trip to the Nisyros volcano means packing for two different environments. You need a light jacket for the breezy 45 to 60-minute boat ride from Kos, and heat-proof gear for the intense conditions inside the crater.
What shoes should I wear to the Nisyros volcano?
You must wear sturdy, closed-toe walking shoes or sneakers. Open-toed shoes, sandals, and flip-flops are strictly prohibited.
The crater floor reaches extreme temperatures. Active fumaroles emit steam approaching 100°C (212°F). Without closed-toe shoes, you risk burning your feet on the hot ground. Officials enforce this rule at the entrance.
What clothes are best for the Stefanos crater?
Wear light, breathable clothing. The temperature inside the crater feels significantly hotter than at the top.
The caldera walls block the wind and trap heat. You will spend 30 to 45 minutes walking on the 300-meter-wide crater floor. Shorts and lightweight t-shirts work best.
How should I protect myself from the sun?
Apply strong sunscreen (SPF 50+) before entering the crater. Bring sunglasses to shield your eyes from bright light and sulfur fumes.
There is absolutely no shade inside the Stefanos crater. The sun reflects heavily off the light-colored volcanic rock.
| Item | Why you need it |
|---|---|
| SPF 50+ Sunscreen | Zero shade inside the crater |
| Wide-brimmed hat | Protects face and neck from direct sun |
| Sunglasses | Reduces glare and blocks mild sulfur fumes |
How much water do I need?
Bring at least 1 to 1.5 liters of drinking water per person. There are no facilities to buy water inside the crater.
The combination of direct sun and geothermal heat dehydrates visitors quickly. Buy water on the ferry or at the port in Mandraki before your bus departs for the mountain.
What should I pack for the ferry ride from Kos?
Pack a light jacket or windbreaker. Sea conditions can occasionally be breezy during the crossing.
The ferry from Kardamena to Mandraki takes 45 to 60 minutes. While the crater is very hot, the boat deck is often cool in the morning. Keep your jacket in your bag once you arrive.
What else should I bring to Nisyros?
Bring physical cash (Euros), a smartphone or camera, and a backup power bank.
You need €5 in cash to pay the Stefanos Crater entry fee at the ticket booth. Standard tour buses and boat tickets usually do not include this fee. Extra cash is also useful for buying local items in Mandraki.
Questions travellers ask
Can I wear sandals to the Nisyros volcano?
No. Open-toed footwear like sandals and flip-flops are strictly prohibited. You must wear closed-toe shoes to protect your feet from the hot ground.
Are drones allowed for photography?
Drones are prohibited inside the crater without prior official permission. You can use standard cameras and smartphones freely.
Do I need warm clothes for the volcano?
You do not need warm clothes for the crater itself, as it gets very hot. However, a light windbreaker is recommended for the breezy 45 to 60-minute boat ride from Kos.
