Tickets are now available and going fast to do something that has been off-limits to the general public for 133 years: Tour the inside of the iconic Salt Lake Temple.

Free but required, the tickets — reservations went online Tuesday — give holders access to an hourlong, guided tour sponsored by representatives for The Church of Jesus Christ of Latter-day Saints.

The six-spired, pioneer-era building last opened to outsiders just before its original dedication in 1893.

Anyone can reserve up to six tickets by using the Temple Square app or by going to TempleSquare.org. There, users can select a day and time for any point from April 5 through Oct. 1, including Sundays, next year. After that, the temple will be rededicated and closed to all but members in good standing.

Tours are available in English, Spanish, Portuguese, German, French, Simplified and Traditional Chinese and American Sign Language. Special tours for the blind and those with low vision, as well as neurodiverse audiences are also available.

Ticket holders are told to arrive within 30 minutes of their selected time. Entry after that point is not guaranteed.

“Offered in a welcoming and flexible environment,” the church’s website reads, “this tour accommodates a variety of sensory, communication and learning needs while allowing extra time for engagement and participation.”

Those interested in group tours — be it for a family reunion, community organization or church youth group — can submit a request for up to 500 individuals.

Additional reservation opportunities will become available in the future.

At an event announcing the theme for the upcoming open house, apostle Dieter F. Uchtdorf expressed a high degree of confidence in the website’s ability to handle what is no doubt a mountain of traffic.

“The site won’t crash,” he said, like it did when sleeveless temple garments became available in the U.S.

Those unable to join a temple visit in person can participate in virtual guided tours. Tickets have yet to be posted for these.

Demand is expected to be high, with up to 5 million visitors during the six-month window preceding the rededication of the temple.

The Salt Lake Temple closed Dec. 29, 2019, for seismic upgrades and extensive renovations.

Unlike meetinghouses, Latter-day Saint temples are reserved for the faith’s most sacred rituals, including eternal marriages.

— Tribune reporter Peggy Fletcher Stack contributed to this story.