"I always wanted to jump off a plane, which I got a chance to do in this film, but it was scary. I did a tandem jump — you are tied up with a guy who has a parachute strapped on because in your first jump, you always have to be with someone," Deol said.
"He [the instructor] opened the door of the aircraft and sat on the door with his legs hanging in the air with me on top of him. I told him either sit inside or jump, I can't handle this. Then when we jumped, I felt like changing my mind and going back in, but you can't do that; so that's even more scary," added the 35-year-old.
But Deol enjoyed sea diving and found it "meditational because I love the water".
'I like swimming'
"I like swimming. Whenever I sea a blue sea, I feel like diving and that dream came true during this film."
Apart from indulging in adventure sports, the actor also sang for the first time in the film and even matched steps with co-star Hrithik Roshan in the song Senorita.
"Singing was fun. I'm not a singer, so I was a bit worried, but I was more interested in singing than dancing. I'm never excited about dancing. I did that very grudgingly. We locked the steps three days before shoot and then practised for three days. Not very hard steps and that's why we were so casual about it.
"For me, it's not about the difficulties or easiness of a step, it's about getting over the consciousness of doing the steps," he said.