Tintorera (1978)

Tintorera (1978) is a shark movie unlike any other. Filled with naked men, threesomes, skinny dipping, and severed limbs, it follows the tale of two men bent on shark hunting and relentlessly wooing women. Stephen (Hugo Stiglitz) is a businessman seeking respite from his hectic career and decides to take up residence on a yacht off the coast of Mexico. After losing a love interest to a deadly tiger shark, he befriends Miguel (Andres Garcia), and the two gallavant around the coastal town, sleeping with American college students and one vacationing British woman. Throughout their sexual triumphs and travesties, these men are continuously plagued by the killer shark and ultimately seek revenge. 

Steven's yacht is essentially a floating bachelor pad, and Hugo spends very little time wearing clothing while on board. He bares his entire bod, from his balls to his butt, as he gets busy out at sea. Andres is no different, spending the majority of his time on the boat in the buff. (He's even naked when he cooks breakfast. Where can we get one of those?) This flick will leave you asking one question: Are these gentleman shark hunters or lady killers?