Rodney, 28, is one of a number of new faces at Twickenham Stoop having signed from Manly over the close season, leaving the Sea Eagles with a Grand Final winners ring.
The Broncos squad were put through their paces by the Royal Navy in a variety of activities including rock climbing, caving and circuit training.
Rodney told the club’s official website: “It’s been great – fairly exhausting but it’s been a great way to get to know the boys.
“I’ve done similar things to this before, not to this extreme though! It’s been great doing this team building and getting the guys working together. It’s what you’re going to go through in a game so it’s been good.
“I was terrified before I went into the caves but it was a real good experience. It’s great for the team; this is the kind of commitment from each other that we are going to need on the pitch next season.”
Another member of the triumphant Manly 2011 side, Michael Roberton, has also followed Rodney to London, while Antonio Kaufusi has also made the move from Down Under having previously played for Newcastle Knights.