Is it permissible for a woman to go on a mixed-gender trip from morning until evening without a mahram?

The mixing of women with men is forbidden (haram), and the prohibition and danger intensify if it occurs during a trip where leniency and casualness are prevalent. Therefore, it is not permissible for a woman to go out on such trips, even with a mahram, as long as reckless mixing exists. And whoever accepts this for his female mahram relatives is lacking in protective jealousy (gheerah) and weak in religious commitment.