Having been at the two previous Olympic Games, the Scottish canoeist is hoping to make history in London this year.
If Olympic qualification goes to plan, Glasgow-born Walsh will become the first British canoe slalom paddler to compete in three Olympic Games.
Walsh's sporting journey began when he was just eight-years-old, first paddling at Airthery Loch, in the heart of Stirling University.
He never looked back and his career on the water developed over the years, resulting in a long and enriching career for the Nottingham-based hopeful.
The 34-year-old had a successful 2004, claiming Olympic silver in Athens as well as becoming World Cup champion.
Following on from this, he won bronze medals at the World Championships in 2006 and 2007; however he then experienced mixed fortunes in the 2008 season.
Although he became European champion, he could only manage a fifteenth place finish at the Beijing Olympics.
Walsh has put this disappointment behind him though, ensuring he is both mentally and physically prepared for the crucial races this year.
With a training camp in Australia between January and February, somewhat a ritual of the past ten years, Walsh is now ready to take on the world in his home nation.
Olympic selection races are fast approaching, with trials being held in mid-April at the 2012 venue of the Lee Valley Whitewater Centre.
Just one spot is available on the British team and Walsh is doing everything in his power to ensure that it is his come July.