Amathumbu oMhlaba afihla enye yezona zinto zibalaseleyo kwindalo eYurophu. Endaweni yeLas Graderas (eMolinos, idolophu yaseTeruel) ungandwendwela imiqolomba emi kwindawo entle ye-stalactites, i-eccentric stelectite stalagmites (ukukhula okuthe nkqo).
Iindonga, iisilingi kunye nemigangatho yomqolomba zigutyungelwe kukuhamba, iikholamu, iiflegi, i-arborescent kunye ne-eccentric formations ezamkela ezona ndlela zahlukeneyo, imibala kunye neekristallisation. Umqolomba ufanelwe ligama elaziwa ngalo: Las Grutas de Cristal.
Zikumasipala waseMolinos, ukuya kuMntla-mpuma wephondo laseTeruel. Imiqolomba inikwe amandla kukhenketho, ngokhenketho olukhokelwayo (kuya kufuneka uhlawule ukungena), kwaye ukufikelela kuzo kuvela edolophini kuphawulwe kakuhle. IMolinos inokufikelelwa ukusuka ku-N-211, ngendlela yaseAlcorisa okanye ngendlela ejikelezayo malunga neekhilomitha ezi-3 empuma yeGargallo.
Amatikiti, ngexesha lekwindla, anokuthengwa emiqolombeni ngeMigqibelo, ngeCawa nangeeholide. Ezinye iintsuku kwiholo yedolophu yaseMolinos. Ixabiso li-euro ezingama-7 ngomntu ngamnye kwaye kubandakanya utyelelo olukhokelwayo kwimiqolomba. Iiyure zezi zilandelayo: ngeMigqibelo, ngeeCawe nangeeholide ukusukela ngentsimbi ye-11 ukuya kweyoku-13 ngokuhlwa nangeyesi-14 ngokuhlwa ukuya kweye-18 malanga. Kwaye phakathi evekini ukusuka kwiiyure ezili-14 ukuya kwezili-16.
