Super Saiyan 3 (SSJ 3)
is the strongest form a Saiyan Being can go to. (SSJ 4 was reached in the TV series DragonBall GT, but as every true Dragon Ball fan knows, that doesn't count) To reach that power lever one must ascend a lot. Just like this cache to reach GZ you must ascend a bit to reach the peak of this mountain. (Ibu Mountain)
Park at the parking waypoint (same as Oldest Oak Tree) and follow a rocky road up until you get to a junction that has a few trails.
Follow this sign
all the way up to the mountain peak. The other sign will take you to Okinawa's oldest Oak Tree and the geocache there.
The path up and down the mountain will be very slippery in wet weather so plan accordingly. My sons 6 & 8 both managed to get to the top okay but they had a few slips and spills on the way back down so please be careful. And if going in Summer, bring plenty of water and watch out for venomous Habus.
Once you conquer the mountain and find SSJ 3 you can get a puzzle piece to find a Dragon Ball.
Good Luck