Stones inclusion comes at the expense of injured duo Michael O'Connor and Ben Rix.
Also Technical Director Dario Gradi decided against taking any on the youngsters to the camp at Vale do Lobo in the Algarve.
The three days away will be seen as team bonding as well as some intense training ahead of the start of the season.
The players will endure a early morning jog followed by a weight session in the afternoon and then a training game in the evening.
Goalkeepers
Ben Williams, Stuart Tomlinson, Owain Fon Williams
Defenders
Billy Jones, Julien Baudet, Danny Woodards, Daniel O'Donnell, Chris McCready, Greg Stones, Mat Bailey
Midfielders
David Vaughan, Gary Roberts, Neil Cox, Eugen Bopp, Steven Schumacher, Colin Daniel, Mark Carrington
Forwards
Ryan Lowe, Nicky Maynard, Shaun Miller, Tom Pope