Listen to Marty and Hope. I took my daughters last year (18 & 16 yrs old). The boys followed them and hounded them EVERYWHERE. I never let them outta my sight at night, although I did grant them some leeway during the day...but always with an understanding of when they were expected to return. Took them out with us one evening, turned around for one minute and the picnic table they were sitting at was COMPLETELY SURROUNDED...you couldn't even see them! I fished 'em outta there in a hurry!