Yoshi's Island

Yoshi's Island is located near Dinosaur Land, and where the entire tribe of Yoshis resides. The natural island habitat is where Baby Mario first landed from the sky after being separated from his brother by Kamek ("Yoshi's Island"), and through which the Yoshis traveled to help reunite the two brothers. Later in life, Mario would sometimes return to the island to visit the tribe.

In the "Dimension" saga, the entire alliance of heroes is transported here from the falling Death Egg by Shadow, who uses the chaos emeralds and Master Emerald to subsequently ascend into the sky along with the E-Series robots to push the station back out into space. The group watches from the island as Shadow and the E-Series send themselves away along with the Death Egg, and then witnesses the Yoshi militia's arrival and the capture of Doctor Eggman—Bill and Gaz having led the militia to the island via submarine.

Five years later, Calvin, Hobbes, and Susie Derkins return to Yoshi's Island in an attempt to evade the alien horde. However, their efforts are in vain, as Eggman Nega gives the Head Alien their exact location, and essentially initiates the Onslaught on Yoshi's Island, in which Calvin and Hobbes engage in further combat with their enemies, while also defending Susie from the monsters—specifically, the tyrannosaurus rex, who sets fire to much of the island with his flaming breath alone. The surrounding water is where a restrained Moe almost drowns, but is saved by Hobbes and Susie, as Calvin is continuously attacked by his foes. After the battle ends, later in the evening the group seeks shelter in a nearby forest and builds a campfire, before eventually being found by Princess Peach and her Toad soldiers, who rescue Calvin and his allies and fly them away from the island aboard the Toad Express.