The refurbished swimming pool at St Piran's School was opened on Wednesday by a top swimmer.
Former pupil, Fabian Whitbread, opened the pool and took a dip in the water.
Headteacher Jonathan Carroll, said: "It really is a great facility, not just for our children but for all sorts of people and groups."
The six-figure revamp for the pool is one of three recent makeovers the school has undertaken in the last year.
Earlier this year the reception pupils moved into a new block and in the summer term the school reopened their all weather pitch.
Top Ten Articles
The crash, which took place at about 7am today (Thursday), involved three vehicles. One man sadly died as a result of the collision and his next of kin have been informed.