Kanto Route 25

Route 25 (Japanese: ２５ばんどうろ Route 25) is a route in northeast Kanto, connected to at its western end.

Route description
Heading from west to east, Route 25 initially begins as an extension to. To the east, Route 25 comes to a maze of trees (Generations, and ) or shrubs (Generation III). Regardless of the Generation, the maze is full of s ready to battle. Note that if the player loses to Cooltrainer/Ace Trainer Kevin at the end of the route, he cannot be rematched; however, since he gives the player a Nugget before the battle begins, there's no extra benefit by defeating him besides the prize money, which all Trainers give. To the northwest of the maze is a patch of grass containing wild Pokémon.

Near the east end of the maze, there is a table tree blocking an area that contains an item. By removing the tree, Trainers can collect a certain item.

East of the maze, the route opens up to its widest point before condensing slightly near a pair of Trainers (/) or a single Trainer and the first of two ponds near the east end of the route, known as Cerulean Cape (Japanese:   Cape). To the north of a land bridge between the two ponds is the Sea Cottage, the home of Bill.

Route 25 continues east, turning south at the ocean shoreline and passing along a narrow strip of land between the ocean and the eastern pond. At the southern tip of the pond, the route turns west, intersecting the land bridge as it runs along the southern edge of the ponds. Just to the west of the pond, the route turns north for a yard before doubling back to the west, running along the southern edge of the route's main path as it feeds into the "express route", one way portion of Route 24. The existence of the long, narrow bypass south of Route 25 allows for quick, hassle-free travel between Cerulean Cape and its namesake city. However, due to a ledge at the southern terminus of Route 24 in Cerulean City, the reverse is not possible.

In Generations and, the corner connecting Routes 24 and 25 is considered a part of Route 24. In Generations and, it's included with Route 25.

Generation IV
The four trees are located at the northwest corner of Route 25.

Generations I and III
The route layout in Generations and  is nearly identical. The only change is the closing of the hill behind the Sea Cottage in Generation III.

Generation II
In Generation II, the maze was reduced in size and more s were added to the west side of Route 25. This move was made due to the loss of the Nugget Bridge in Generation II. To compensate, the challenge has been moved from the bridge on to the maze on Route 25. At the end of the maze, the reward for defeating all of the Trainers in the maze is a Nugget.

Generation IV
The route is nearly identical in structure to Generation III with the exception of a few minor changes. The move of the Nugget Bridge challenge to Route 25 still remains from Generation II and the territory that Route 25 occupies is the same as Generation II. The hedge that goes along the bottom of the maze is now a fence and the maze area is elevated, making the bottom half of the loop below the mountain appear at a lower level. There is also a cliff to the right of Bill's house, where can be found and caught after roaming throughout Johto and Kanto. Misty appears here as well during the evening, if Suicune is not there. The two ponds have also been replaced by one large pond, which is surrounded by a fence.

In the anime
Route 25 appeared in Here Comes the Squirtle Squad and Mystery at the Lighthouse. A small town is shown to be located somewhere on the route in Here Comes the Squirtle Squad. Bill's Lighthouse is also located somewhere on this route, as shown in Mystery at the Lighthouse. Apparently, this route is near the sea, and there is a beach where Ash captured his.

In the anime, Route 25 leads to Vermilion City, instead of.

In the Pokémon Adventures manga
Route 25 debuts in ...But Fearow Itself! as the place where 's Sea Cottage is located and where first met him.

Trivia

 * Route 25 is one of only three numbered routes in the Pokémon world that is a dead end, the others being in Unova and  in Sinnoh.
 * The increase of 's encounter rate from 33% to 70% and the addition of between  and  can be taken as a reference to the anime series episode Mystery at the Lighthouse, considering the fact that Route 25 is the place where Ash caught his Krabby.
 * Misty, the Cerulean City Gym Leader, likes to bring her dates to the Cerulean Cape on the east side of Route 25. One such date was interrupted in Generation II when the undefined encountered Misty at the land bridge between the two ponds following the restoration of power to Kanto. In, the date instead takes place on the hill located just east of the cottage.
 * In HeartGold and SoulSilver, Misty mentions how she loves watching the sunset when talking to her, yet she is on the east coast staring off into the east, while the sun would set in the west.