School of dolphins swim alongside tourist boat

Rachel Yung and her family were on holiday in California, USA, in the summer when she posted this incredible video.

During their stay they went on a boat trip in the hopes of maybe seeing a dolphin or two.

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Not only did they see a few dolphins, they were lucky enough to see a whole school of them ducking and diving alongside their boat.

The beautiful animals can be seen popping up next to the boat for at least thirty minutes according to Rachel.