Watch Volcano Live! with Nik Wallenda! Chris Harrison, host of ABC's hit The Bachelor franchise will trade roses for adrenaline as the official host of "Volcano Live! with Nik Wallenda," along with television personality and ESPN anchor Sage Steele, who will serve as co-host. The pair will hit the Pacific Ring of Fire live from the Masaya Volcano in Nicaragua as Nik Wallenda becomes the first person to embark on a 1,800-foot-long highwire walk over the famed volcano. Nik Wallenda comes from a family of thrill-seekers including great-grandfather Karl Wallenda and mom Delilah Wallenda. Nik is looking to add the volcano walk to his long list tightrope adventures that include walks over Niagara Falls, New York's Times Square and more. "Volcano Live! with Nik Wallenda" will air as a live two-hour televised event TONIGHT, WEDNESDAY, MARCH 4 (8:00-10:00 p.m. EST). This will mark Nik's longest and highest highwire walk ever attempted.