OK your wife's gone to Edinburgh to do the last of the Christmas shopping. The tide is out the wind is up. Given congestion on the bridge and the stuff she has to get I have probably 5min after setting up to catch some wind.
Your Questions answered.
Q. Are there any pedestrians on the beach?
A. NO
Q. Are there any regulations?
A. NO
Q. Can you buggy, board or surf from this beach without anyone getting slightly grumpy?
A. YES
Q. How much time did you have?
A. Probably 45min it's quick and easy to set up on this beach.
Q. Do I need to know anything else about this beach?
A. Best wind SE (rarely happens still get a good run though.)
Q. And how is your head.
A. Good always wear a helmet.