Team manager Garan Evans has also travelled down to the showground to represent the Scarlets.
Rugby skills sessions took place and the Scarlets Roadshow caravan was a popular show attraction.
The region's retail manager Victoria Anderson said: "Throughout the past couple of months we've been showing that rugby means summer fun too - we've attended fairs all over West Wales."
The sunshine months have seen staff take their famous caravan to communities across Carmarthenshire, Pembrokeshire and Powys.
Victoria said: "We love getting out and about in the community. There's been a lot of excitement about the new season, with our British Lions Stephen Jones and Matthew Rees due to return after their tour to hook up with our new Wales caps Jonathan Davies and Daniel Evans.
"We've also got some great new signings such as Scotland wing Sean Lamont, Wales prop Rhys Thomas and Wales Sevens world cup winner Richie Pugh."
The Scarlets caravan features merchandise such as summer clothes for men, women and children, great back-to-school items and gifts such as mugs, wallets, hip flasks and cuddly toys.
There was also the chance to learn about the new season's great season ticket deals. Sales are open to all in the Castell Howell South Stand at Parc y Scarlets. Details: 0871 871 8088.
Scarlets Roadshow visits this summer have included ... July: Carmarthen Show, Ammanford Family Day Out, Llandybie Family Fun Day, Royal Welsh Show; August: National Eisteddfod, Haverfordwest Show