Hydrofoil is a accessories that can make water sport more exciteing and challenged. Surfboard hydrofoil is the surboard on a hydrofoil. The foil looks like a plane with a bar attached to it and the surfboard need a special slit in the back middle where your foot would go. Think of the finn holder but for a large finn.
People can do insane stuff on the foil. From flips to other tricks, and spins. Usually on the hydrofoil surfboard you will be pulled behind a boat. Then the other times you use it on waves, or in open ocean swells. An open ocean swell is pretty much waves that happen in the middle of the ocean. Even some people have done it on a lake with a running head start.
With so much mass of the board, conditions will need to be perfect. The water needs to be deep for the foil to move up and down. If the water is choppy enough it will be hard to keep balance on the board. Along with that, you would not want to be on crowded water. If someone is trying to go under you most likely they won’t be getting away from the foil coming at them.
If you want to try surfboard Hydrofoil, may be our hydrofoil would be a good choice for you.