This is the camera equipment that I use for shooting surfing.
I'm not stating that this is the set up you have to have in order to capture great footage but it's what is currently in my bag when I head to the beach.
Equipment featured:
Canon 1DX Mark ii
Canon 400mm 2.8
Canon 70-200mm 2.8 ii
Canon 75-300mm
GoPro Max
GoPro 7
DJI Mini