After playing three friendlies against lower league opponents, Liverpool have travelled to the west coast of the United States to really kick their pre-season preparations into gear.
Jurgen Klopp and his men are in California ahead of International Champions Cup games against Chelsea and AC Milan in Pasadena and Santa Clara respectively, before playing their final game against Barcelona at Wembley ahead of the new season.
Having arrived in the States two days ago, the staff and players had a chance to unwind and acclimatise to their new surroundings as they took a trip to the notorious Alcatraz Federal Penitentiary.
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In a video blog posted on the club's official YouTube channel, French defender Mamadou Sakho used a Go-Pro camera to document his trip around the famous prison that sits off the San Francisco coast.
Sakho, who is once again involved with the first team following the drugs test debacle that cost him an appearance in the Europa League final and a place in France's Euro 2016 squad, shared jokes with a number of Liverpool players, young and old.
The usual suspects; Daniel Sturridge, Nathaniel Clyne, Phillipe Coutinho and Alberto Moreno - who was playing the popular game Pokemon Go - were involved, as were new signings Loris Karius, Marko Grujic and Sadio Mane.
Sakho entertained himself by asking players how long they could have lasted in the prison and drew a number of laughs by stating he could have spent 100 years there, calling himself a lion.
Judging by these tweets, it's clear the centre back's video was a huge hit with the Liverpool faithful.