StadiumStadion Castro Urdiales
| Current capacity of the stadium |
| Standing | 17 500 |
| Seats | 10 900 |
| Tribune | 6 500 |
| Seats for sponsors | 200 |
| Fans attended |
| 23. 7. 2026 | Castro Urdiales-Piedrabuena | 3 546 |
| 18. 7. 2026 | Castro Urdiales-Fuengirola | 3 556 |
| 11. 7. 2026 | Castro Urdiales-Alhambra | 3 673 |
| 6. 7. 2026 | Castro Urdiales-El Mojan | 3 695 |
| 4. 7. 2026 | Castro Urdiales-Torre del Mar | 3 337 |
| 29. 6. 2026 | Castro Urdiales-Valladolid | 3 494 |
| 25. 6. 2026 | Castro Urdiales-Coin | 3 510 |
| 20. 6. 2026 | Castro Urdiales-Alloa | 3 488 |
| 15. 6. 2026 | Castro Urdiales-Sevilla | 3 298 |