In the early '90's I was flying on a contract for Dollar at Kyle of Lochalsh for the BUTEC. The week before I got there, I was told that an entire French Helicopter Club, who were touring the UK, had flown under the brand new Skye bridge (before it had been officially opened). A total of about 8 or 9 helis', a mix of R22, R44, B206 & H500.
I was invited to copy this by my passengers, but I declined on the grounds that it was more than my job was worth 😇