This footage was shot by divers in Kona, Hawaii on a night dive.
The group were diving off the coast of Kona to view manta rays feeding in their natural environment.
As the divers enjoyed the sight of the rays feeding in the light from their boats, they were joined by a friend in need.
A dolphin joined the group and lingered around the divers before they realised he needed help. The video shows the bottlenose dolphin approach a diver who notices his fin is entangled in fishing line.
Here’s what happened next…
