Jo, bostin' means excellent, as in this example of Aynuk at the seaside (Great Yarmouth):

Aynuk: They'm bostin' pigeons, they am, maert.
Local: Tha' be gulls, bor.
Aynuk: Gals or b'ys, they'm bostin'!

Hope this clears it up.

Enjoyed the boats, Philippa.

Barabara, a small boat would have a tiller rather than a wheel.

I'm going to stop now, even though it may be too late!!

Steve

P.S. I believe in the US they have a kind of pulse called a Bostin' bean?