A traveling choir plans to eschew the luxuries of a concert hall for the lantern-lit caverns of a Colorado Springs cave Sunday.

The Undertones, an a cappella group from the Notre Dame Glee Club, plans to perform three concerts Sunday at the Cave of the Winds - two in a handicap-accessible cave, and the third in the Grand Curtain Hall.

The event is a fundraiser that will benefit people affected by the Waldo Canyon fire and the ensuing flash floods, said Jim Jenista, co-vice president of the Notre Dame Club of Colorado Springs, which is hosting the group. Tickets to the event, which cover admission to the Cave of the Winds and allow a donation to be made, can be bought at cave-ofthewinds.com.

The donations will be given to the Manitou Springs Fire Department, said Ann Tilley, the Cave of the Winds' human resources manager.

Tickets for the first two shows - at noon and 1:30 p.m. - are $20 for people 12 and older, and $15 for children ages 6 to 11. Tickets for the third show at 3:30 p.m. are $25 for people 12 and older, and $17 for children ages 6 to 11.

The singing group travels to Colorado Springs once every few years, but this will be its first performance in the caves. Owners of the caves believe it's the first concert performed here since the 1880s, Tilley said.

And even though the walls surrounding them this time will be limestone, the sound should carry just fine, Jenista said.

"It still has tremendously accessible acoustics," Jenista said.