Giles, who made 34 appearances in total for the Seasiders, has joined Northern Football League side Bishop Auckland.
He departed the Turnbull Ground to spend time on loan at the Two Blues earlier this year.
Now his exit has become more permanent, and in doing so, he ends a two-year association with Whitby, who currently sit bottom of the Pitching In NPL Premier Division having failed to win any of their opening seven league matches.
Photo credit: Whitby Town
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