The experience involves dark and dimly lit tunnels, stairs, uneven and potentially slippery terrain, and confined underground spaces. These present risks including slips, trips and falls. The tunnel environment may also cause discomfort for people who experience claustrophobia or anxiety. Natural events such as earthquakes may present additional risks outside our control.

Participants must have a moderate level of fitness and be able to walk on uneven ground and climb stairs unassisted.

For your safety:

• Secure footwear is required; jandals and loose slip-ons are not suitable.

• Children must be accompanied by an adult.

• Follow your guide's instructions and remain with the group at all times.

• Let your guide know if you feel unwell, anxious, claustrophobic, dizzy or unsafe.

• Please advise us of any medical condition or injury that may affect your ability to safely complete the tour.

• It is essential to remain with the group at all times. Should you become separated or your light fails, please stop where you are and loudly call for guide help.

• In an emergency: stop, listen to the guide, remain calm, do not self-evacuate unless instructed or life safety requires it.

• You cannot participate if impaired by alcohol or drugs.

Our guides are there to help you have a safe and enjoyable experience. They will provide a safety briefing before entering the tunnels and will manage the group throughout the experience. If you have any questions or concerns before your visit, please contact us.