Welcome Alan,
Just sit back tomorrow and enjoy the good weather. The open day at Alcantarilla was a non event for me. It was absolutely mobbed. There must have been thousands there. A car park on the base itself was completely full with cars and coaches and officials were directing people to park on the main road where they could. In my case miles away from the base. Result, I did an about turn and just headed back home. I guess the event was advertised in the Spanish press because it certainly wasn't in the British press.
The moral would be to arrive very early for these events in the future !
Ian