From the Super Mario Wiki
Pleasant Path is characterized by the peaceful pleasant brook running down it, along with the many trees and Candy Canes. Russ T. speaks of these special candy canes, telling Mario that if he does something for them, they will do something for him in return. Mario first encounters both Koopa Troopas and Paratroopas on the lane. A fork-like mountain holds the high path to the Koopa Bros. Fortress, and the low path to Koopa Village. The exit to the west leads to Toad Town. Locations in Pleasant Path include:
After the completion of Chapter 5, Kent C. Koopa blocks the west exit of Pleasant Path. If the player wishes to go through Pleasant Path in this way, the player must defeat Kent C. Koopa before proceeding or they could alternately pay him 100 coins to pass.
 Enemies Found
 Area Tattles
 Names in other Languages