Half the Park Happens After Dark (St. Mary)

Join our astronomers for a tour of the night sky and telescope viewing, all while learning why protecting dark skies is so important. Offered on clear nights only. Bring a chair and dress warmly. Wheelchair accessible.  Astronomy programs are made possible through a generous donation from the Glacier National Park Conservancy.

Before you go: Reservation required. A park entrance pass is also required.

Staying for it? The Tamarack sleeps 10 in Lakeside, Montana, a short drive from Flathead Lake’s public beaches. Check dates & request a direct quote or see everything else on the calendar.

Source: nps · official listing · date confirmed 9/1/2026 · last updated 9/1/2026. External links are the organizer’s own pages; we don’t sell tickets or quote prices.