Right then. I've just heard back from the lovely Carol.
Not only can we NOT use the esplanade, or the car park, but motorcycles are BANNED from the esplanade and the immediate area.
Not only that, but the whole area will be inaccessible in June as they will be putting up the stands and doing lots of work for the Tattoo.
So we have NO chance of getting anywhere near there for a start.
She's going to check Holyrood (?) Park and see if that area is acessible for us to start from.
Ok...arse....though I suspected as much.
Urrrrm another "Landmark" option would be Calton Hill, though I know access to that has been limited in recent years too. Gets us a good view of the Castle if we can swing it.
Meeting down at South Queensferry might be a good idea also as there's a big open carpark right on the shore with stunning views of the 2 bridges...a bit further out of town, but well connected to the major roads to get us heading West for the first ferry
Failing that, maybe down at Leith Docks somewhere around the new(ish) Ocean Terminal where The Royal Yacht Britannia now resides. Murrayfield Stadium maybe?
I know that Princes Street is now closed to traffic for a couple of years while they dig it up and put in the infrastructure for the new trams, so that rules a few other possibilities out too.