Peaceful Well

The Peaceful Well is likely the fourth cave you'll explore in Pikmin: Connection of the Worlds, and is found at the Garden. It is the the shortest of all caves, and also the easiest. The entrance to the cave itself is all the way on the other side of the Garden- where the Decorative Goo was in Pikmin 2. However, it cannot be accessed at first (see below). This cave is the only cave where Burgeoning Spiderworts appear underground in any of the caves in the game, or any cave in any game for that matter.

Accessing the Peaceful Well
The first time you land at the Garden, all it'll be is a desolate wasteland. Go to the Great Volcano, and turn it off. Now you have to let the Garden recover (it takes 10 days). In one corner, you'll find the Yellow Pikmin. There will also be about 20 bomb-rocks near the Onion. Use them and bomb down all the walls. Now, you have to go where the Decorative Goo was found in Pikmin 2. However, there will be a puddle of water right in front of it. Find the Blue Pikmin and drain the puddle away. Now you can enter!

Wildlife
2x Burgeoning Spiderwort

2x Ravenous Whiskerpillar

1x Burgeoning Spiderwort Mold

2x Iridescent Flint Beetle

3x Iridescent Glint Beetle

1x Diamond Beetle

2x Crimson Candypop Bud

2x Golden Candypop Bud

2x Lapis Lazuli Candypop Bud

5x Egg

???x Mitite

Sublevel 1
You start out in a small chamber, and there is a single passageway leading to another chamber. In this chamber, there is a Burgeoning Spiderwort Mold. Clear it, and some Burgeoning Spiderworts will grow. However, there are two Ravenous Whiskerpillars that accompany them. Beat them and you can take them to the Research Pod for 1 Poko each. You can harvest berries from the Spiderworts if you want to. There are also 2 Eggs in this level. When you're done, find the hole and go further down.

Sublevel 2
Again, you land in a rather small chamber. If you walk a little ways, you'll be in a huge chamber. There are 2 Iridescent Flint Beetles, 3 Iridescent Glint Beetles, 1 Diamond Beetle, 3 Eggs, and 2 Crimson, Golden, and Lapis Lazuli Candypop Buds. The single treasure for this cave is in plain sight, then carry it back to the Pod. If you want, boost your army with all these things. When you're done, take the geyser and leave.

Trivia
It was noted in Pikmin 2 that, although Ravenous Whiskerpillars weren't found underground, they were supposedly worth 1 Poko. Their appearance in this cave has confirmed this rumor.