The walk to the Glacier from the troll cars will take approximately 15 minutes over some steep, uneven terrain. The troll cars are not covered and will operate in the event of rain. Please wear comfortable, enclosed walking shoes and carry a bottle of water and a warm waterproof jacket. Please heed the warning signs erected near the Glacier and do not venture beyond the safety barriers. The Glacier is not visible from the refreshment venue. This tour involves tunnels.