A teacher has paid tribute to Lance Corporal Oliver Thomas, 26 from Brecon.
Nick Dinsdale taught the serviceman at Lady Hawkins School in Hereford and described the soldier as an exceptional student.
"He was academic, sporting and exceptional in every way. He was head boy and a great ambassador for the school".
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The face can be viewed when looking at Anthony Hoyte's 78-mile route on a map.
The hotel rooms have been altered to suit the fuller figure. Chairs are almost a metre wide and can withstand more than 40 stone.
Officers are currently at the scene. Gwent Police said the female involved is being supported by specialist officers.