Sea search resumes for missing SA family

Authorities in South Australia will resume searching for a family who never returned from a boat trip.

Len and Annette Vandepeer and their adult son Doug set out on their boat from Cape Jaffa in the state's southeast on December 12 and failed to return in the evening.

The SA Police water unit will begin a new search for the missing family on Wednesday, having ended an extensive air, sea and land search on December 19.