| System | Region | Depth | Cave | Cavern | OW | Last Report | Remarks |
|---|---|---|---|---|---|---|---|
   CT-12 |
Murcia | 105 |  True |
 False |
False |
||
 Cueva del Agua |
Murcia | True |
False |
False |
|||
| Fuentenavina |
Guadalajara | 92 | True |
False |
False |
||
| La Fuentona |
Castilla y León | 377 | True |
False |
False |
Permit required | |
| Moraig |
Alicante | 98 | True |
False |
False |
||
| Pozo Azul |
Castilla y León | 233 | True |
False |
False |
||
| Zarzalones |
Andalucia | True |
False |
False |
