Seems Conor McGregor was PUMPED about his dip in the ocean Friday.
The UFC superstar threw a post-swim selfie on social media braggin' about his LONG workout -- and, as you can see, water must not have been very cold in Ireland today.
"Great swim in the beautiful Irish Sea with the team," the Irish fighter said.
It's not the first time we've seen McGregor flaunt his mini-me ... he had it on full display at weigh-ins for the Mayweather fight.
Look .