Prince Harry helped release five baby turtles back into the sea on the island of Nevis during his Caribbean tour.
Urging the turtles on, Harry told them "Go, go, go..." as he watched them being reintroduced into their natural habitat.
On the aptly named Lovers Beach, Harry - who recently confirmed he is in a relationship with US actress Meghan Markle - assisted volunteers who were monitoring nests and found turtle hatchlings.
The volunteers from the Nevis Turtle Group work on the island to collect information about the turtles' movements, in order to assist in conservation.
As Harry released the baby turtles one at a time, he said: "Go, go, go... That way," adding "That's really clever," as one of the turtles paused waiting for the water to pull it in, reported the BBC.
Harry is involved in a number of charities, which includes the extensive work he undertakes with wounded servicemen, such as being involved with the Invictus Games.
However, he also founded the United for Wildlife charity alongside his brother, Prince William the Duke of Cambridge, and his wife Kate Middleton the Duchess of Cambridge. United for Wildlife aims to fight the illegal wildlife trade and engage young people in conservation work.
The Prince is undergoing a tour of seven Caribbean Islands on behalf of the Queen, which began on Sunday 20 November in Antigua and Barbuda, before moving on to St Kitts and Nevis. The prince is also expected to visit Barbados, Grenada, St Lucia, St Vincent, the Grenadines and Guyana.
Earlier in the day, Harry made a speech on the Island, in which he apologised for the Queen's absence and also noted his appreciation of the young people he had spent time with.
Speaking at the island's Central Forest Reserve and National Park, Harry, who also supports a number of charities aimed at providing assistance to young people, said:
"There is no better way to judge the future of a country than by spending time with its youth...the young people of St Kitts and Nevis have creativity and energy in bounds – two qualities that will set you up for the future."