Where can I store a trailer in/around Llançà?

Hello,

We will be on holiday during August in Port de la Selva.  We use a small luggage trailer (une remorque) and I would like some information as to where I might store it for a week, as there is no additional parking available for the rental property.  I've been looking for caravan storage facilities, but unfortunately I don't speak Spanish or Catalan so local internet searches have been a bust.

Any information will be greatly appreciated.