Teams have to complete the Roadblock before the last gondola 's departure time at 7 : 00 p.m. .
In this Roadblock , one team member had to search among 3,000 padlocks for the one which would unlock the padlock using a provided key for the next clue .
Teams have to complete the Roadblock before the last gondola 's departure time at 7 : 00 p.m. .
In this Roadblock , one team member had to search among 3,000 padlocks for the one which would unlock the padlock using a provided key for the next clue .