On a small boat in the Atlantic, about 27 nautical miles (50km) away from South Africa's Cape Point, a group of bird watchers are calling out seabird names: "Atlantic Yellow-nosed! Black-browed Albatross!"
The tour boat takes bird watchers from Cape Town to see endangered seabirds, including albatrosses, that are hard to find on the mainland.
It's a warm summer's day and the sky is blue and clear, perfect conditions for bird-watching. The skipper is speaking on his radio - he's looking for fishing trawlers.
He soon finds one, and makes a beeline towards it. The closer the boat - operated by Cape Town Pelagics, a non-profit organisation - gets to the fishing vessels, the more seabirds appear.
As he stops right next to the fishing boat, hundreds of birds trail behind it.
