First Great Western staff from Westbury train crew depot and the railway station are holding a summer fair on Saturday to raise money for Macmillan Cancer Support.
Some of the activities planned for the afternoon include a cake competition, skittles tournament, tug of war and lots of games for all the family to enjoy.
British Transport Police (BTP) will also be marking bikes, phones and laptops in a bid to crack down on theft.
FGW driver manager Sally Wiltshire said: “This event is all about bringing colleagues together, having fun and raising money for charity.
"We’ve got all the right ingredients for a great day out and it’s a fantastic opportunity to bring our local community together."
There will be music and entertainment provided by FGW staff in the Railway Club until 11pm.