Bringing teenagers...leave tech at home or no?

My teens are 17DD and 15DS. They bring their smart phones and that's it. They do use them but also spend time enjoying the outdoors. My son more than my daughter loves to be outside but will use his phone in the morning and at night. I see it this way, we are on vacation do what you enjoy and let them do what they enjoy. Don't stress over it, maybe they'll see how much fun your having and will come out and enjoy with you.