The former SAS trooper and his eldest child Jesse, 20, were seen sprinting down the black sand a beachin Guanacaste province, Costa Rica before diving into the sea at around 3pm local time.
The former SAS trooper, 49, has been in the Central American country for weeks alongside Holly Willoughby, 43, for their new Netflix show Bear Hunt, which is set to air next year.
The former Little Mix star is said to have argued with Grace Davis in recent weeks and it is understood the clash prompted a cryptic message posted by Grace on Instagram