Mark Peters and friends went fishing for albacore off Santa Cruz, Calif., but their most amazing capture, by far, was that of truly stunning underwater dolphin footage. The mammals appear after the 1:35 mark and seem close enough to touch as they follow beneath and alongside the small boat. They remain before the camera lens, seemingly curious about the device, through the remainder of the video.

Peters used a GoPro Hero 2 camera with a flat lens and dive housing, but was able to capture the footage thanks to a “torpedo” housing he constructed, enabling the camera to remain steady underwater.

The fishing trip was out of Santa Cruz aboard the vessel A Salt Weapon. The mammals are Pacific white-sided dolphins, which are avid bow riders and can be very acrobatic. They’re found in temperate coastal waters of the North Pacific and can measure to about seven feet and weigh 300 pounds.

There have been no documented instances of dolphins being struck by boats during their bow-riding forays.