Possible Clues:

• Party I'd organised for excursion
• Possibly jolly tryst, we hear, run down
• Short outing
• Outing that's over by bedtime
• Excursion that doesn't involve an overnight stay
• Journey made somewhere and back within 24 hours
• Excursion of short duration
• Party I'd assembled for outing
• Travel that doesn't require a hotel reservation
• Short holiday