In order to avoid risks, it is very important to be totally aware about oneself health conditions and to inform eventually your guide about them.
Here following some notes about safety.
No hiking activity is allowed after the third month of pregnancy for security reasons and physical integrity.
Heart disease, asthma and vertigo
All hiking activities at any altitude are not suitable for people suffering from these diseases, both for low altitudes and higher ones.
The use of contact lenses is forbidden during any excursions, above all for those leading up to summit area, due to the presence of volcanic ashes spread by the wind.
Changes of schedule
Excursions schedules are subject to changes or interruptions at the discretion of the guide if weather conditions, environmental causes, or volcanic risks can represent any source of danger.
Moreover, the guide has the authority to interrupt the excursion for any reason risking to compromise the safety and so the physical integrity of a single person or of the whole group.