The Costa Rican beach where Malcolm-Jamal Warner tragically drowned was clearly marked with bold warning signs about rip currents and high drowning risks ... TMZ has learned.

Officials are setting the record straight about Malcolm-Jamal Warner’s death. Despite earlier reports, Costa Rica’s Judicial Investigation Agency (OIJ) told People on Friday that the “Cosby Show” alum’s daughter was actually not in the water at the time of his drowning.