Seeing a great white shark is already a pretty exceptional occurrence, but these tourists got even more than they were bargaining for when they got to see this beast of the ocean right up close. Whilst waiting on the deck of a boat in the hopes of seeing a great white shark, an enormous one leapt out of the ocean - right next to their boat.An enormous cry goes up from the tourists on the boat and we have to admit, we're amazed that whoever was filming this managed not to drop their phone! This must have been quite some shock. If you can't get enough of all things shark then you really need to check out the footage of this great white attacking another shark - caught on camera by British diver Adam Malski. Be warned - it's not for the faint of heart!Check out the video above to see the shocking footage for yourself!