The 40-year-old actor showed off his various tattoos during his relaxing swim.
The same weekend, Stephen‘s new movie Heatstroke, starring Game of Thrones‘s Maisie Williams, opened up in theaters.
The movie features a family on a trip in the African desert. Things get dark when a research scientist travels off course and is murdered by an arms dealer. His girlfriend faces the ultimate survival test as she attempts to escape the killers and save herself and his teenage daughter.