Winter Retreat Winter Retreat will be held February 17-19, 2023. Cost is $100 per student Deadline to register/Medical Release form/pay is Sunday, February 12th. If paying online, use “Winter Retreat” in memo line. Register for Winter Retreat Highland Park Medical Release winter-retreat-1winter-retreat-2winter-retreat-7winter-retreat-3winter-retreat-4winter-retreat-5winter-retreat-6winter-retreat-8winter-retreat-9winter-retreat-10winter-retreat-11winter-retreat-12