Longest underwater caves in Spain
Ranked by reported survey data.
| # | Cave | Location | Length | Source |
|---|---|---|---|---|
| 1 | Cova de sa Gleda - Camp des Pou Also: Cova de sa Gleda | Manacor, Balearics, Spain | 14,620 m | Cave-Exploring World Long Caves Secondary source Provided by: Jose Luis Membrado e-mail |
| 2 | Pozo Azul | Covanera, Burgos, Spain | 14,415 m | Cave-Exploring World Long Caves Secondary source Provided by: Jose Luis Membrado e-mail |
| 3 | Cueva del Agua | Cartagena, Murcia, Spain | 6,622 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: Grupo Cueva del Agua (2022) |
| 4 | Cova des Coll | Manacor, Baleares, Spain | 5,529 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: caverbob< Gracia F. et all (Endins 2005) Total 7.020m Recorr. Sub. 5.529 |
| 5 | Cueva de Zarzalones | Yunkera (Málaga), Andalucia, Spain | 1,726 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: Catálogo Grandes cavidadea de Andalucia (2007) Proyecto Zarzalones |
| 6 | Cueva de la Atlantida | Lanzarote, Canarias, Spain | 1,072 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: caverbob |
| 7 | Font Bordonera | Coll de Nargó (Alt Urgell), Catalunya, Spain | 955 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: Joel Borrazás (GEB) 2017 |
| 8 | Nacedero de Franzisiturri | Anotz, Navarra, Spain | 589 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: OTXOLA Grupo de Espeleología 2016 |
| 9 | Fuente Azul | Hortigüela - Burgos, Castilla León, Spain | 490 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: Espeleobuceo en Burgos 2008 ( R. García) |
| 10 | Pozo San Vicente | Pesquera de Ebro - Burgos, Castilla León, Spain | 390 m | Grandes Cavidades Submarinas de España Tertiary / aggregate source Provided by: Espeleobuceo en Burgos 2010 ( R. García) |