Ever wished there was a way to move between terminals at Denver International Airport without taking the train?

Travelers will soon be able to walk between the terminals, as Denver city officials on Tuesday announced the airport will repurpose underground baggage tunnels into pedestrian walkways. Project details are still being finalized, according to a news release from the airport, but work on the project is expected to start in 2027.

While there is a walkway connecting Concourse A to the main security terminal, there is currently no way to travel between concourses apart from using the train, which has dealt with many outages in the past year.

Denver Mayor Mike Johnston said in the release that the city has heard calls for easier and more reliable modes of transportation at the airport, with the new walkways serving as a “big win” for travelers through DIA.

“These new pedestrian walkways would deliver on that – giving folks more flexibility while we continue building one of the best-connected airports in the world,” Johnston said in the release.

Johnston also poked fun at the conspiracy theories surrounding the airport, which include rumors of secret underground bunkers. He said travelers can get a closer look at the underground tunnels and decide “what’s fact and what’s fiction.”

DIA CEO Phil Washington said in the release that adding the walkways is a key component of the airport’s Vision 100 plan and is designed to add more ways to get around the airport as the number of passengers continues to increase. The strategic plan is helping the airport prepare for an eventual estimated 100 million annual passengers.

Last year, DIA logged just shy of 82.5 million passengers, making it one of the busiest airports in the country and world. In addition to expanding transportation options, DIA has also added 39 new gates and invested $75 million into modernizing the train cars as part of the Vision 100 plan, according to the release.

Years ago, airport officials put out a call for ideas on how passengers could get to the terminals, in addition to the trains, and if trains became unavailable.