The final 5 are 5 trainers that preside on the battle pier (or the dock) on Rosecove Beach. It is based on the dock from Pokemon FireRed. At the end, there is a prize.
Dock Information Edit
On the dock, all the trainers have Water -Type Pokemon. The trainers supposedly get harder as you get to the final trainer. After you have beaten all these trainers, you get the Kings Rock from the prize giver. The Kings Rock may cause a opponent to flinch and is known to trigger evolution in a few pokemon. hOI! iM tEMmIE!