Conor O'Byrne, who describes himself as "a keen sailor" with a "burning desire of sailing around the world", has started a blog to record his preparations for and participation in the race, the first leg of which kicks off from England this coming August.
The garda hopes to use his place in the epic voyage to raise awareness for the Irish Underwater Search and Recovery Unit, but also has more personal reasons in mind for the challenge.
"My reason for undertaking the race and being such a long time away from home and sailing in some of the world's most punishing seas was to hopefully build on my character and to learn more about myself and other people in the most extreme conditions.
"I like to be pushed beyond my comfort zone as I enjoy a challenge."
Follow Conor's preparations for the year-long race - which takes a route via South America, South Africa, Australia, China, the USA, Panama, Canada and Northern Ireland - at his Garda Around The World blog HERE.