Welcome to the Must See Duluth Pass. This is a Discount Pass for Duluth, Minnesota’s three biggest and best attractions. The discount pass is available for sale here online, and after buying your pass, you can use it anytime this year as a voucher for a train ride, boat excursion, or general admission to the Aquarium. You’ll get a confirmation email, but you do get a physical pass / voucher which you can pickup at the first location you visit when you get to Duluth. See you soon!