| Station name | Holding centre | Parameters |
| Alboran | Puertos del Estado. Physical Environment Department | |
| Alicante | Puertos del Estado. Physical Environment Department | |
| Alicante coast | Puertos del Estado. Physical Environment Department | |
| Almeira | Puertos del Estado. Physical Environment Department | |
| Athos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Barcelona | Puertos del Estado. Physical Environment Department | |
| Barcelona_coast | Puertos del Estado. Physical Environment Department | |
| Cabo Begur | Puertos del Estado. Physical Environment Department | |
| Cabo de Gata | Puertos del Estado. Physical Environment Department | |
| Cabo de Palos | Puertos del Estado. Physical Environment Department | |
| Capdepera | Puertos del Estado. Physical Environment Department | |
| Constantza | National Institute for Marine Research and Development Grigore Antipa | |
| Dragonera | Puertos del Estado. Physical Environment Department | |
| E1M3A (Cretan Sea) | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Ibiza | Puertos del Estado. Physical Environment Department | |
| Kaciveli | Marine Hydrophysical Institute | |
| Kalamata | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Lesvos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Ligurian Sea (W1-M3A) | CNR, Consiglio Nazionale delle Ricerche | |
| Mahon | Puertos del Estado. Physical Environment Department | |
| Malaga | Puertos del Estado. Physical Environment Department | |
| Motril | Puertos del Estado. Physical Environment Department | |
| Mykonos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Nice | SHOM (SERVICE HYDROGRAPHIQUE ET OCEANOGRAPHIQUE DE LA MARINE) | |
| Palamos | Puertos del Estado. Physical Environment Department | |
| Pylos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Santorini | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Saronikos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Skyros | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |
| Split | Croatian Hydrographic Institute | |
| Tarragona | Puertos del Estado. Physical Environment Department | |
| Tarragona_coast | Puertos del Estado. Physical Environment Department | |
| Valencia | Puertos del Estado. Physical Environment Department | |
| Valencia_coast | Puertos del Estado. Physical Environment Department | |
| Vida | National Institute of Biology - NIBMarine Biology Station | |
| Zakynthos | Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC) | |