Peach's Castle Grounds is the fifth course in Mario Golf: Toadstool Tour. Its holes vary in setting, featuring a combination of forests, islands, and clifftops above the clouds. Some holes have Warp Pipes in them which transport the ball to another location if the player manages to land a shot in one. Large, bouncy mushrooms are found throughout the course; if the ball somehow stops on top of a mushroom cap, the player will still be able to take their next shot from on top of it, but they will also be assessed a one-stroke penalty for a "tree hazard". Holes 2 and 12 feature Chain Chomps; if the ball lands in their territory, it counts as out of bounds. Peach's Castle appears on the first and last holes of the course.
There is a river to the right of the fairway that also parts it through the middle. There is a yellow pipe that will transport balls from one side of the river to the other, as well as a green pipe that leads near the green. On the right side of the river is a landmass with Peach's Castle on it. Fountains and flagpoles are found near the tee boxes.
2
4
394 yards
425 yards
This hole is in a forested area inhabited by Chain Chomps. Bunkers and mushrooms dot the fairway, and there is a large pond to the left of the green.
This hole takes place in a canyon with several large mushrooms. There are green and yellow horizontal pipes in the fairway that players can hit their balls through, and they will roll out the other end. At the end, the hole dips downward into an area with several waterfalls. The green is on a small island with three bunkers.
5
4
383 yards
412 yards
This hole takes place on a set of small islands connected by wooden bridges. The islands near the green are taller, with the green being on the tallest island with two bunkers near it. Many tall mushrooms surround the area, and Cheep Cheeps can be found swimming and jumping in the water.
6
3
171 yards
188 yards
The green is on an island shaped like a mushroom in a small pond. The green itself is the head of the mushroom, with bunkers as the spots and fast fairway as the stem.
7
4
391 yards
419 yards
This hole has a curving fairway that borders a small pond. The pond has an island in it with a stone statue of Toadsworth. There is also a second pond, which contains the green. Both ponds have brick bridges leading to their islands.
8
5
535 yards
563 yards
This hole takes place on a spiraling mountain resembling the one from Bob-omb Battlefield in Super Mario 64. The green is on top of the mountain next to three bunkers and King Bob-omb. Despite being a par 5, the green can be reached in a single stroke.
9
4
412 yards
445 yards
This hole takes place on a sky-high clifftop. The fairway weaves around some tall hills and mushrooms, with some smaller mushrooms in the middle of the fairway. To the left of the green is a large bunker.
10
4
417 yards
449 yards
This hole features several high clifftops connected by wooden bridges. The green is bordered by two bunkers. Tall mushrooms and beanstalks surround the area.
11
3
120 yards
140 yards
This hole takes place at a beach. There is a rock structure shaped like a Koopa Troopa with the green on top of its shell.
12
5
561 yards
591 yards
This is a densely forested hole with Chain Chomp pits of various sizes found throughout.
13
4
427 yards
456 yards
This hole returns to the sky, with a segmented fairway on high clifftops of varying elevations surrounded by tall hills and mushrooms. There is a yellow pipe on the right past a green hill that transports balls near the green, which is bordered on the right by a bunker.
14
4
340 yards
358 yards
This hole takes place on a steep rocky cliff at sea with many grassy parts jutting out of it. Multiple pipes are found throughout. There is a yellow one near the start that takes balls near the middle of the hole, a green one slightly further in that takes balls a bit farther, and a blue one near the end that leads near the green at the top.
15
4
435 yards
447 yards
This hole is on a long strip of land in the middle of the ocean. Mushrooms are found near and on the fairway, which narrows and dips downward toward the middle. Several bunkers surround the green.
16
4
401 yards
428 yards
This is an uphill hole with a river running through it that parts the fairway. There is a large mushroom with a low hanging cap in the middle of the fairway on the left, while some smaller but still large mushrooms are stationed near the green. Star-shaped bunkers are found throughout, with the green being inside one of them. Super Star decorations surround the area.
17
3
163 yards
196 yards
This hole takes place on some small clifftops above the clouds, which are connected by rainbows. The tee boxes are at a much higher elevation than the green, which has two star-shaped bunkers and a flower patch next to it. Several towers resembling the Tower of the Wing Cap are found in the area.
18
5
584 yards
611 yards
This hole is a winding path leading to Peach's Castle with fireworks going off in the background. There are Super Star decorations lining the right side of the hole in the middle of flower patches and on top of trees. There is a large bunker to the left of the fairway with a yellow pipe in it that takes the ball closer to the green. There is also a green pipe that drops the ball on top of a nearby ledge. A star-shaped bunker is found in the middle of the fairway to the left of the green pipe, with another one being in front of the stone bridge that leads to Peach's Castle. The green is in front of the castle, surrounded by a brick path and flower patches.
When playing in the Peach's Invitational, 29 other competitors will appear in the leaderboard at the end of each Hole. The names consist of other playable characters, Mario characters, or generic nicknames. When playing in the Peach's Star Invitational, more names will be from Mario characters, characters from other Mario series such as Paper Mario will appear, as well as characters from other Nintendo franchises such as The Legend of Zelda.
