Confirmation from Porth Daniel that they can cope with a number of boats and would do us a deal. If you ring directly and mention the forum when booking for that week end it will help. Not sure what a normal cost would be in all honesty but it sounds reasonable for storage overnight etc and a tractor launching everyone rather than cars flying everywhere. Plus once launched you are out of the way.
"We would be able to accommodate 20 plus boats overnight. Overnight storage and launch would be £26 (which includes parking for the car and trailer for the day)."