0 As you well know, prepositions are very tricky.02br 00'from the sea' indicates that the drowning boy was in the sea and was rescued from it, probably being removed from it, either to a boat or to the shore.02br 02br 00'in the se' simply indicates where the boy was drowning.02br 02br 00I would not use 'at', except for 'at the seaside' as in 'a