Marine experts have suspended their effort to rescue a sea lion from a farmland canal because he seems to be headed home on his own.

Dr. Cara Field of the Marine Mammal Center says the 400-pound sea lion that got into a canal in the inland city of Vacaville started going back toward the delta of the Sacramento River on Wednesday.

The river 50 miles north is the closest body of water. The center believes the animal likely traveled up the river, took a wrong turn and followed a series of agricultural ditches and waterways to get to the canal.

Field says the sea lion was in no danger from swimming in the fresh water and can survive for years outside the ocean as long as there's a good food source.

She says the animal found carp to eat and chowed down before heading toward the delta.