Joseph Baena Channels Dad Arnold Schwarzenegger During Triathlon

Arnold Schwarzenegger's son Joseph Baena rips off his shirt and flexes his muscles as he exercises during Tropical Storm Hilary

Joseph Baena strikes one of his dad Arnold Schwarzenegger's classic bodybuilder poses while shirtless at the beach

Arnold Schwarzenegger's son Joseph Baena, 25, shows off his incredibly muscular physique as he follows in his father's footsteps