The Royal Cayman Islands Police Service Marine Unit located some ganja floating in the water during an offshore patrol in the District of Bodden Town last week.
Police said they observed a suspicious package floating in the water Thursday. The officers examined the package and found the contents to be ganja.
A further search of the water and beach areas resulted in further discoveries of ganja, police said.
Officers did not state how much of the drug was recovered.
The RCIPS is investigating this matter and is appealing for anyone with information relating to this drug discovery to contact the Serious Crime and Drugs Task Force.