Spent five years there from 80-85 (after putting 'not Sealand' on my preferences for posting. lesson learned there...). Worked in 6 Sqdn on F4 stuff. Work was a bit boring but my kids were little, I bought my first house and it was an 8 to 5 job. Didn't like it at the time but looking back it was ideal from a family point of view.
The gate guardian was the Mk 16 Spit and I well remember looking at it thinking 'That bugger will never fly again'.
Most notable event was an earthquake when I was on Orderley Dog that put a ripple in the concrete floor of the guardroom.