Johto Route 31

Route 31 is a route in central Johto, connecting Route 30 and Violet City. The western entrance to Dark Cave is located on the eastern part of the route.

Route Description
This route is the third route that most Trainers starting in New Bark Town will arrive at. Like the route before it, Route 31 contains more than an even share of ledges that players can either try to climb or go around. A small pond is north of the route, just west of Dark Cave. This area features few trainers, and is fairly small.

There is a small mailbox located next to the pond. Next to it is a dedication, with the words "Dedicated to my father, the Sleepy Mail Patron." Inside the mailbox is a Potion.

Items
Near the entrance of the Dark Cave, players can find a handful of Antidotes. There's enough for all the players!

Next to the lake is a Potion, hidden inside the Mailbox.

There's a couple Apricorn Trees, one with Black Apricorns and one with White Apricorns.

Near Bug Catcher Wade Jr., there's a sack of five Basic Balls.

Pokemon
The following Pokémon naturally occur on Route 31.

Trainers
Bug Catcher Wade Jr. 

Reward is $32