Lava tube near Sao Vicente,Madeira. Lava tubes are formed when lava flows solidify on their surface and lava remaining fluid in their interior drains away. The lava tubes in Lava tube near Sao Vicente are open to visiting tourists. Some small lava stalactites hang from the roof | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Alean, Dr. Juerg |
Taille de l’image : | 5578 px × 3716 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |