Public transportation options are available nearby

Not recommended for pregnant travelers

Not recommended for travelers with poor cardiovascular health

Suitable for all physical fitness levels

Walking tour with live guide commentary (fix language option)

Not possible for wheelchair or baby stroller due to walking / stairs

Not possible for people with any walking disability, mobility issue

Not allowed for smallest children under the school age

Not for infants or children with attention / behavior disorder

Not recommended for high pregnant travelers or claustrophobia

For safety it is required to speak the chosen language of the tour

Not allowed to join the tour under alcohol or drug influence

Not allowed to translate during the tour to other languages

Not allowed to disturb the tour by any disruptive behavior

Not for bachelor parties, costumed groups, no smoking, no pets

Tour duration might vary +- 10/15min depending the group size

Online tickets can be made up to 30 mins before the tour start

Once the tour left the start it is not guaranteed to join the group

Comfortable shoes, normal walking footware recommended

Photos are allowed, video recording only with special permission

not for people with claustrophobia, serious heart issues, similar

For a full refund, cancel at least 24 hours before the scheduled departure time.