Kanto Route 20

Route 20 (Japanese: ２０ Water Route 20), known as Sea Route 20 in Generation I, is a water route located in southern Kanto. It connects in the east to Cinnabar Island in the west. The Seafoam Islands are located on this route.
==Route description==
Route 20 stretches from east to west with Seafoam Islands in the middle. A labyrinth of rocks around Seafoam split the route in half. Normally, the only way to cross them is by travelling through the underground caves on the islands. The northern cave can be accessed from the east and the southern cave can be accessed from the west.
From the southern entrance to the caves (guarded by a Trainer in Generations , , and ), Route 20 curves west, passing south of the northern cave through a narrow channel before expanding to the full width of the route. In every Generation, there is a small rest platform just west of the Seafoam Islands (though this has become a single, large island in Generation IV). This rest area is occupied by a Trainer in Generation I, III, IV, and VII.
Depending on the generation, the layout of Route 20 between this point and Cinnabar varies.
===Generation I===
From the rest station, there are three more Trainers, two of which are located very close to each other, before arriving at Cinnabar. There are also two more Trainers along Route 20, one near the western shore of the Seafoam Islands and another just south of the Seafoam entrance on Route 20 in the water.
===Generation II===
The length of Route 20 was cut by half in the second generation, which resulted in the number of Trainers being cut to three. The rocks around Seafoam that prohibited direct access between the eastern and western halves of the route were removed. The only item of interest between the rest station and Cinnabar Island is a lone Trainer southwest of the platform.
===Generations III and VII===
Unlike other generations, Generations III and VII featured four rest islands, two or three of which contain Trainers. From the rest island present in all generations westward, the route passes north of a small island (with Trainers directly to the north and west of it, and the island occupied by a Trainer in Generation VII only) before heading south of the largest rest island on the route, north of another small island with a Trainer and north of another Trainer before coming to Cinnabar.
===Generation IV===
The route is the same in length as Generations I and III. The only noticeable change is that the rest islands from Generation III have combined into a large strip of land that goes along the bottom of the route. There are four Trainers on this island as well as three s and a at the Seafoam entrance. Unlike in Generation II, the barrier that forces the to travel through the islands' caves remains.
==Items==
==Pokémon==
===Generation I===
===Generation II===
===Generation III===
===Generation IV===
===Generation VII===
==Trainers==
===Generation I===
The following Trainers are listed from east to west.
===Generation II===
The following Trainers are listed from west to east.
===Generation III===
The following Trainers are listed from east to west.
===Generation IV===
The following Trainers are listed from west to east.
===Generation VII===
The following Trainers are listed from east to west.
====Post-game====
==Differences among generations ==
===Generation I===
In the first appearance of this route, the rock boundaries follow a strict path. Rocks blocking the way, forcing people to travel through the Seafoam Islands. There are two signposts numbering the islands, one outside each cave. There is also a wooden pier-like island in the west section.
===Generation II===
The route is shortened by nearly 30%. The west island doesn't have an entrance, and the cave of the east one is now Blaine's gym. Due to this, the rocks blocking the water path are removed, and there is just one signpost, indicating the Gym and the Gym Leader.
===Generation III===
In Generation III, the rock formations are not straight, making the route seem more natural. The Seafoam Islands are remodeled and made bigger. The characteristics of the Seafoam Islands are essentially that of Generation I. The west island is now a tiny sandbar, and three other sandbars are added near the original.
===Generation IV===
In this generation, the route is very similar to its appearance in Generation III. Unlike Generation II, the path is blocked again and the player is forced to travel through the cave, but the Cinnabar Gym is still in the east cave. Now one signpost indicates the landmark's name, and the other has the Gym information. The four tiny islands in the west are now merged into one large sandbar in the southwest section, with some s on it. Several rocks are now present in the middle of the route.
==In the manga==
===Pokémon Adventures===
========
Route 20 made a brief appearance in the beginning of Holy Moltres, where was seen arriving at Cinnabar Island on his Gyarados after having visited the Seafoam Islands.
==Related articles==
* Seafoam Islands
Route 020
Route 020
Route 020
Route 020
Route 020
Route 020
Route 020
de:Route 20 (Kanto)
es:Ruta 20 (Kanto)
fr:Chenal 20 (Kanto)
it:Percorso 20 (Kanto)
ja:20ばんすいどう (カントー地方)
zh:２０号水路（关都）