INVERNESS (CBS SF) — A search of the wilderness area near Inverness was set to resume Monday morning for a couple who have not been seen since Friday, authorities said.

The Marin County Sheriff’s Office said Carol Kiparsky, 77, and her husband Ian Irwin, 72, were last seen Friday at a rental house on Via de La Vista in Inverness/Sea Haven.

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Deputies believe the pair may have gone hiking in the Inverness area.

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Kiparsky is described as being 5-foot-2, weighs 115 pounds, and has gray hair and blue eyes. Irwin is 6-foot-1, weighs about 175 pounds and has blue eyes. He is balding, but has some gray hair.

Deputies do not know what clothing they may be wearing.

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Anyone who may know where Kiparsky and Irwin are is asked to call the Marin County Sheriff’s Office at (415) 479-2311.