When you surf do you know how to duck dive?
Yeah duck dive is the technique used by surfers to sink their surfboards underwater so they can dive under waves with their surfboard
I hear the codes of contact for surfing competitions are extremely safe.
Yeh first is Whoever has been waiting for the longest has priority in the next wave. In general, the surfer who is paddling closer to the peak has a greater right to catch the wave: once it is taken, it is his and only his. Wait your turn, there are more waves
Polynesian ancestors were the first to surf from what I read in history.
Surfing was a central part of ancient Polynesian culture and predates European contact. The chief (Ali'i) was traditionally the most skilled wave rider in the community with the best board made from the best wood.
That is really interesting to say the least.  I never knew that about surfing.
The surfer who is farthest from the shore has preference
How many surfers are in a normal competition usually, and how many rounds?
 Events are comprised of rounds and those rounds are made up of heats with anywhere from two-to-four surfers looking to lock in their two highest-scoring waves , both out of a possible 10 points for a possible 20-point heat total.