Cave Walk – a less adventurous tour, fine even for those who suffer from claustrophobia, no upper age limit 2.5-3 hrs private Cave Walk into two caves, both paved and equipped with artificial lighting. The first cave is the ”underground flower garden” of Budapest because of its charasteristic mineral concretions (cave corals, calcite plates) and gypsum crystals. The other cave has calcite and barite crystals and calcite plate deposits originating from former hot-water lakes. Stalactites and stalagmites can also be found there. Please note: this tour is for small groups (max 14 pax) with English guiding. The caves can be also visited on a lower price by joining the shorter regular Hungarian guided tours (usually school groups or families) that starts hourly.