They were not allowed to travel in the own car and they also had to complete a series of tasks along the way.
The tasks included calling in at a local Bank of Ireland, being pictured with a Mazda car, buying clothes from House of Fraser, traveling on an Ulster Bus and taking on the job of an employee in a Hastings Hotel.
A huge number of photographs were posted on Twitter using the hashtags #fleefly and #suftumnation.
Points for the number of tasks completed as well as originality and creativity will be tallied up and the winning team will be announced to the squad on Wednesday evening.
Ulster are holding open training sessions at Donegal Town RFC today (Wednesday, July 31) (10.30am-12pm) and Strabane RFC on Thursday (August 1) (11am-12.30pm).