The Argentinian sportsman, 34, chatted with his partner, 34, on board as she flaunted her toned abs and lithe legs in a green leopard print bikini.
The pair were joined by Cesc Fabregas and his wife Daniella Semaan for the luxury trip as the couples spent some quality time together.
Antonela Roccuzzo topped up her bronzed tan in the two-piece and took a dip in the sea before later drying off with a bright purple towel.
Meanwhile, Lionel looked happy and relaxed in a white McQueen T-shirt he teamed with patterned shorts and a casual cap.
Cesc, 35, who was recently confirmed to be leaving Monaco at the end of this month when his contract ends, sported a pair of green trunks.
Ibiza is a regular holiday destination for Messi and his family, with the footballer heading there in recent years with his Barcelona teammate Luis Suarez.
Messi and Antonela are parents to Thiago, 9, Mateo, 6, and Ciro, 4.
It comes after Monaco confirmed that midfielder Cesc will leave at the end of the month when his contract expires. (Wed 22) Views: 240
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