Prince Harry travelled along the coastline of Kalk Bay Harbour, south of Cape Town (Picture: PA).
The Duke of Sussex has joined the Royal Marines on a patrol to tackle the illegal wildlife trade off the coast of South Africa.
Prince Harry, who is the Captain General of the Royal Marines, met personnel on the second day of his tour of the country.
He took to the water around Kalk Bay Harbour on a rib alongside the Cape Town Maritime Police Unit (MPU) and members of the British Royal Marines to learn more about the poaching of the abalone snail.
The snail is considered a delicacy in Asia and at least 96 million have been poached in South African waters over the past 18 years, according to a report by Traffic.
Royal Marines are in South Africa helping to train the Cape Town MPU.
Prince Harry posed for photos with members of the Marines and the MPU before departing. He was due to visit Seal Island but the sea was too rough.
Watch: the Duke's Instagram account released footage of him at sea in some rough conditions
Prince Harry and his wife Meghan arrived in South Africa on Monday - their first official overseas tour since the birth of their son, Archie.
The couple have already visited a township in Cape Town and met with Archbishop Desmond Tutu.
The 10-day tour will see Prince Harry also visit Botswana, Angola and Malawi before reuniting with Meghan in Johannesburg.