I sent an enquiry to Loro Parque about what to bringto get discounted entrance fees and they replied
Thanks for your mail. Concerning your question the best would be if you bring together with your British passport or Spanish drivers licence a copy of your ldblquote Certificado de empadronamientodblquote from the Town hall of Puerto de Santiago, (Obviously this is for Stgo residents - others substitute your own town hall) so you wonquote t have any problems at the entrance.
I hope I could help you and wish you a nice time in LORO PARQUE.
LORO PARQUE, S.A.
Direcci'f3n de Relaciones Externas
Inge Feier - Directora
Katja Hahn - Departamento de Medios
Avda. Loro Parque s/n
E-38400 Puerto de la Cruz
Tel'e9fono: +34-922-37-38-41 ext. 204