Ida Lynn Marie Holt-Scherer, a resident of the southern Cariboo community of 70 Mile House, was vacationing in the Okanagan with her family over the weekend.
On Sunday, Holt-Scherer and another girl were standing on a natural sandbar at Skaha Lake, formed naturally where a channel meets the main part of the lake.
Witnesses said the sandbar collapsed, and the two girls were swept into the lake.
The other girl was rescued by a passerby, but Holt-Scherer couldn't be reached.
Searchers found her body on Tuesday about 200 metres from shore, in water about nine metres deep, and about 60 metres from where she had last been seen.
The B.C. Coroners Service said it is continuing to investigate the girl's death.