Ride the Bubble

Steps

1. Jump into the white bubbleIt floats up from the sand north of the plaza.
2. Open the chest in the Coral CaveThe chest sits in the middle of the cave.
3. Defeat the 3 chest guardsAll three show up around the chest.
4. Take the whirlpool back to Underwater CityThe whirlpool is at the south end of the cave.