Hello TJH and a warm welcom to the forum, I hope you enjoy our company. There are a number of Westbury's around and I would guess you mean the one in Wilts! Also are you requesting steam tours? or heritage sites etc. There are quite a few travel through Bath and surrounding areas. One site to visit would be
http://www.uksteam.info/tours/trs12.htm it shows what will be in the area.
Anyway hope you have fun on this forum
All the best
Phil