125 Royal Canadian Sea Cadet Corps RENOWN II began through the merger of 141 RCSCC BELLEROPHON (Welland, ON) and 78 RCSCC VALIANT (Port Colborne, ON). During the planning meeting of the merging units, it was decided not to use the name of either one. Instead, the decision was made to revive another unit in the Niagara Region that had already closed down.
Thus was created the second unit to bear the name RENOWN. The unit was then referred to as 125 Royal Canadian Sea Cadet Corps RENOWN II (though mostly everyone did not acknowledge the ‘2’ in the name). The new corps weighed anchor in Port Colborne where it had a permanent home in the old Jehovah’ Witness church on Killaly St E. In addition, the corps remained active in Welland while doing optional training at the Welland Armoury.
In 2014-2015, the corps witnessed a dramatic down turn in attendance. A new command team was brought in to try and salvage the new unit. However, it was finally decided by Regional Cadet Support Unit Central and the Navy League of Canada to put the corps on hiatus.
In the end the unit was packed up after a year and moved to St Catharines. The corps was re branded and a fresh approach taken. 358 Royal Canadian Sea Cadet Corps SIR ISAAC BROCK is the successor to 125 RCSCC RENOWN II.