| Loại tour | Tour ghép đoàn |
| Loại tour | Tour có hướng dẫn |
| Sắp xếp bữa ăn | Kèm đồ ăn nhẹ |
| Loại tham quan | Thắng cảnh thiên nhiên, Thuê xe đạp |
| Phương tiện di chuyển | Cho thuê xe đạp |
Not Suitable For: Children under 14 years
Not Suitable For: People with claustrophobia
Not Suitable For: People who can't ride a bike
Not Suitable For: People over 260 lbs (118 kg)
Not Suitable For: People under 4 ft 8 in (145 cm)
Not Suitable For: People over 95 years
What To Bring: Comfortable clothes
What To Bring: Sports shoes
What To Bring: Sportswear
What To Bring: Daypack
What To Bring: Closed-toe shoes
Know Before You Go: The tunnels are unlit, so be prepared for dark conditions.
Know Before You Go: The route follows an old railway line with some viaducts and tunnels.
Know Before You Go: La temperatura nei tunnel potrebbe essere fredda. si consiglia di portare indumenti adeguati.