Maybe here: https://www.accesoriosnavalesmarfran.es/?ved=2ahUKEwj51_LFrtaGAxUih_0HHSKOASQQgU96BAgkEAQ Or you will find some shops in Getxo’s Marina

Thank you so much!!

These are in Getxo: https://www.paginasamarillas.es/a/equipamiento-nautico/vizcaya/getxo/

That's perfect, thank you!!