On April 28, 2011, Wallenda visited the Tropicana Casino and Resort in Atlantic City, New Jersey for a pair of performances. In the first, he walked a tightrope inside the casino's shopping center. Performing with a 22-foot (6.7 m) balancing pole, 45 feet (14 m) in the air, he dropped to one knee and then onto his back during the performance. He walked both forwards and backwards before completing the 100-foot-long (30 m) journey. Afterwards, Wallenda said he had previously noted the casino's raised ceiling painted with a sky scene and said to himself "I've gotta walk there!"
On June 4, 2011, Wallenda completed a 100-foot-long (30 m) high-wire crossing between the two towers of the ten-story Condado Plaza Hotel in San Juan, Puerto Rico. The 121-foot-high (37 m) performance was a recreation of the act that had killed his great grandfather Karl Wallenda in 1978. For the performance, Wallenda's mother, Delilah (Karl's granddaughter), joined him. The mother and son team started at opposite ends of the wire. When Delilah reached the middle of the wire, roughly the spot Karl had fallen, she sat down on the wire and Nik stepped over her before the two continued to opposite ends of the wire. At one point during the performance, Nik knelt down on the wire and blew a kiss in honor of his great-grandfather's memory.
On June 10, 2011, Wallenda performed while hanging from a helicopter 250 feet (76 m) above Silver Dollar City in Branson, Missouri. First he hung from a trapeze with two arms, then one arm, then his legs, and finally by his teeth. In so doing, Wallenda set his sixth world record. He called it his most difficult feat to date, and remarked that training "was very difficult. It was very painful. I had neck problems for months afterwards".
On the Canadian side, things went less smoothly. In June 2011, public statements by NPC board members made it clear that they were opposed to Wallenda's plan. After an October meeting with Wallenda, the twelve-person board voted on December 7 to maintain their anti-stunting rules. NPC officials, led by chair Janice Thomson, feared Wallenda's plan could bring back the days when amateur daredevils routinely got themselves injured or killed at the Falls, and also believed it would cheapen the area's natural beauty. "It's sensationalism, and that's not what the falls is supposed to be about", said Thomson. In response, Wallenda funded an economic impact survey conducted by Enigma Research. The results suggested direct revenue potential of $20.5 million for the city, with up to $122 million of "legacy effects" over the next five years. The survey also predicted worldwide viewership of 460 million people. Wallenda further promised to fund all the necessary safety-contingencies and to leave no footprint on the environment. Seeing the economic benefits, Ontario Minister of Tourism Michael Chan convinced the NPC to take a second look. On February 15, 2012, the commission voted unanimously to give Wallenda's plan the go ahead, provided that he paid rigging and commission costs of C$105,000. Wallenda described the legal battle as the biggest challenge of his career and "probably more remarkable" than the walk itself. He attributed the eventual success to divine intervention. "God's hand is involved in every step of my life", he explained. "I believe doors were opened for me that weren't opened for others". Six previous high-profile wire walkers had failed in their attempts to gain approval to walk the Falls since 1971.