Cardiff?
Bristol?
Can’t you find something a bit more convenient? Like the Outer Hebrides?
I believe there’s a daily ferry going.
And if you are worried about the so called bomb scares, why not having the next meet at Kew Gardens or even Butlins? I can’t imagine anyone wantng to blow up some plants.
Anyway, my vote goes to Belfast, the paddies are behaving now and Ian Paisley is in London anyway so it should be safe there