Here is the full list of all 10 Surf World Series trophies - there are 4 bronze, 5 silver and 1 gold.
Customise 10 boards
Complete all Challenges
Complete all Single Player Events
Come first in all Multiplayer Game Modes
Score over 100,000 points in a single Event
Perform all the advanced air tricks
Ride the infinite wave for over 10 minutes
Perform a very hard air trick at night
Visit all the locations and times of day
Wipeout 500 times