The Sea Trophy itself has the visage of Trap Team's leading evil lady, The Golden Queen. When placed on the portal, the final two sea-based race courses will be unlocked. These are Tropic Plunder and The Golden Temple.
The Golden Temple draws a lot of elements from The Golden Queen's lair in Trap Team. Not only do the walls and waterways give off a golden shine, but so do the massive rolling balls that get closer to hitting you with each lap around the course. If you select this race's Boss Pursuit, then you will have to go up against The Golden Queen herself and her Glitter Glider. Once you've got her beaten, you can then use her in other races. Her Glitter Glider not only shoots golden scarabs, but you can also get a boost and a temporary shield by holding down one of the buttons.
In the Tropic Plunder course, you can to race through a Caribbean island scene, complete with shallow waterways between islands, tropical foliage and pirates. In fact, the boss you can unlock in this course is Captain Frightbeard and his ship, the Lil' Phantom Tide. His boat will fire swords as a long-range weapon, but it also has a close-range strong attack that fires his ship's cannons in all directions.
While the other two sea race courses are already unlocked when the game begins, with the Sea Trophy associated with the game, you can then do the Boss Pursuits for these two courses as well. For instance, the Mystical Vault puts you against Spellslamzer and his Rune Slider while the Frozen Fossil Festival nets you Mesmeralda and her Wave Singer. The first vehicle also has long and close-ranged attacks while the other gives you a speed boost and its ammunition will have a lasting effect on the enemy boats it hits.
The Sea Trophy also unlocks the Supervillain and Mirror tournaments for the sea-based courses. These take you through all four courses, once in their normal manner, and then again with the Mirror setting turned on.