The Tasman Glacier Trail is a Y-type trail, one to the Blue Lake Observation Deck and the Takata Observation Deck, and the other to the Tasman Glacier Lake. The Blue Lake Observation Deck is also the starting point of the Blue Lake Trail, and the viewing platform in the Tasman Glacier Valley continues onward. At one end of the observation deck is a degraded glacier, at the bottom is the Tasman Glacier Lake, and at the other end is a degraded valley.