Great Marsh

The Great Marsh (Japanese: Great Marsh) is an area located in Pastoria City. It is Sinnoh's Safari Zone and contains some that cannot be found anywhere else in Sinnoh. It is filled with marshy areas, which, unlike normal marsh tiles, have tall grass inhabited by wild Pokémon.
==In the games==
===Functioning===
====Capturing Pokémon====
Much like other Pokémon preserves in Kanto and Hoenn, the Great Marsh features a Safari Game in which s pay 500 for 30 Safari Balls and a limited number of steps (500) to catch all the Pokémon they can.
The mechanics are similar to other Safari Zones: when a wild Pokémon appears, the may not send out any Pokémon to it, but must instead try to catch the Pokémon without harming it. The wild Pokémon may choose to flee the battle at any time, thus, catching a Pokémon in the Great Marsh requires mainly luck.
There are four options shown in the battle screen:
* Throw a Safari Ball - Throws a Safari Ball in possibility of capture. It is much the same as throwing a Poké Ball in an average Pokémon battle.
* Throw bait - Throwing bait makes a Pokémon easier to catch, but makes it more likely to flee from battle. (Increases catch rate and flee rate by one stage each)
* Throw mud - Throwing mud does the reverse of throwing bait, making the Pokémon harder to catch, but making the Pokémon less likely to flee from battle. (Decreases catch rate and flee rate by one stage each)
* Run from battle - Like in an average Pokémon battle, running away from a Pokémon will cause the battle to end.
Similar to the issue in Pal Park, if the player has an in the front of their party, holding a Plate, and initiates a battle, the game will freeze.
The area was redesigned in Pokémon Platinum to feature slightly upgraded graphics that allow the player to distinguish between deep and shallow mud. The park is still divided into six areas, but the individual areas have slightly different layouts.
====Changing Pokémon====
Some Pokémon will not always appear in the Great Marsh. Every day, a random Pokémon from a set list will be chosen by the game to appear in each area of the marsh, in addition to the Pokémon that can always be found there. Each possible Pokémon has a different chance of being chosen, but whichever one is chosen has a 10% encounter rate in its area. The same Pokémon can be chosen to appear in multiple areas on the same day, and, prior to obtaining the National Pokédex, some of the Pokémon that can be chosen can already be encountered anyway. After obtaining the National Pokédex, the list of changing Pokémon changes.
The only way to tell which changing Pokémon is available in each area for the day is to use the lookout upstairs from the entrance. For 100, the player can get a brief glimpse of the Great Marsh, showing certain Pokémon in certain areas of the marsh. In each slide, a part of the park will appear with a Pokémon in the center of the slide that can be found in that area. However, the Pokémon that are shown are completely random, meaning that it is possible for the player to only see Pokémon that can always be found in each area anyway. Record mixing also changes the changing Pokémon of the day in the Great Marsh so that all players mixing records have the same Pokémon on the same day.
===Details===
As with previous Safari Zones, Pokémon are made easier and harder to catch by modifying their catch rates. An escape rate is also given for each Pokémon that appears in the Great Marsh. The escape rates for Pokémon are the same for all Generation IV games, except that those who do not appear in the Great Marsh or the Johto Safari Zone do not have their escape rates defined in the relevant games.
At the start of an encounter, both rates are set to their species defaults. Throwing Bait will increase the catch rate by one stage, but will also have a 90% chance of increasing the escape rate by one stage. Conversely, throwing Mud will decrease the escape rate by one stage, but will also have a 90% chance of decreasing the catch rate by one stage. When bait is thrown and the flee stage is not increased the message "... is busy eating!" will be displayed. When mud is thrown and the catch stage is not decreased the message "... is beside itself with anger!" will be displayed. Stages for catch rates and escape rates work identically to : they may not be raised above +6 or below -6, where 0 is the starting stage. The stage multipliers applied to the catch rates and escape rates are also identical to that of stat stages.
At the end of each turn, a random number between 0 and 254 (inclusive) is generated, and if it is less than the or equal to the modified escape rate, the Pokémon escapes.
Due to a programming error, does not have a flee rate programmed into the game, and thus only has a 1/255 chance to flee (if the generated random number is 0).
Statistically, exclusively throwing Safari Balls provides the best chance of catching every Pokémon in the Great Marsh.
===Base flee rates===
These are the base flee rates. The Pokémon actual chance of fleeing each turn is affected by bait and mud.
# 	Pokémon	Pokémon	Base value	
024	 	 	60 	23.5%
046	 	 	120 	47.1%
054	 	 	90 	35.3%
055	 	 	60 	23.5%
102	 	 	120 	47.1%
114	 	 	90 	35.3%
115	 	 	150 	58.8%
129	 	 	90 	35.3%
130	 	 	60 	23.5%
163	 	 	90 	35.3%
164	 	 	60 	23.5%
183	 	 	60 	23.5%
193	 	 	120 	47.1%
194	 	 	120 	47.1%
195	 	 	60 	23.5%
285	 	 	120 	47.1%
298	 	 	120 	47.1%
315	 	 	60 	23.5%
316	 	 	120 	47.1%
318	 	 	90 	35.3%
339	 	 	120 	47.1%
340	 	 	0 	0.4%
352	 	 	120 	47.1%
357	 	 	60 	23.5%
396	 	 	90 	35.3%
397	 	 	60 	23.5%
399	 	 	90 	35.3%
400	 	 	60 	23.5%
406	 	 	120 	47.1%
451	 	 	120 	47.1%
452	 	 	60 	23.5%
453	 	 	150 	58.8%
454	 	 	120 	47.1%
455	 	 	60 	23.5%
===Items===
====Entrance====
====Area 1====
====Area 2====
====Area 3====
====Area 4====
====Area 5====
====Area 6====
===Pokémon===
====Generation IV====
=====All areas=====
The following encounters are used for Surfing and fishing in all areas where they are possible.
=====Areas 1 and 2=====
=====Areas 3 and 4=====
=====Area 5=====
=====Area 6=====
=====Changing Pokémon=====
The "rates" below are the chances for that Pokémon to be selected to appear in an area. All of these Pokémon will appear with a 10% encounter rate within the Great Marsh, or a 10% greater rate if they were already present. In Diamond and Pearl, the changing Pokémon's encounter rate is compensated (so that all encounter rates sum to 100%) by lowering the encounter rate of and in the same area (as seen above) by 5% each, while in Platinum, it is compensated by lowering the encounter rate of by 10%. The way this works in the games, this means that if Wooper is selected as the changing Pokémon in Platinum, there is no change to the tables shown above.
====Generation VIII====
=====All areas=====
The following encounters are used for Surfing and fishing in all areas where they are possible.
=====Areas 1 and 2=====
=====Areas 3 and 4=====
=====Area 5=====
=====Area 6=====
=====Changing Pokémon=====
The "rates" below are the chances for that Pokémon to be selected to appear in an area. All of these Pokémon will appear with a 10% encounter rate within the Great Marsh, or a 10% greater rate if they were already present. The changing Pokémon's encounter rate is compensated (so that all encounter rates sum to 100%) by lowering the encounter rate of and in the same area (as seen above) by 5% each.
===Layout===
Version	Entrance 1F	Entrance 2F	Marsh
 	 	 	
 	 	 	
 	 	 	
  	  	  	 
===Music===
Games	Situation	Song name (Japanese)	Song name (English)	Composition	Arrangement
 	Overworld	だいしつげん 	Great Marsh 	Hitomi Sato	Hitomi Sato
==In animation==
===Pokémon the Series===
As a boy, James was exploring the Great Marsh when he found a stuck in the mud, struggling to get free. James pulled it out and they became friends ever since. During 's journey through Sinnoh, Carnivine traveled with James.
========
, , and visited the Great Marsh in Cream of the Croagunk Crop!, in which Brock and his participated in the Pastoria Croagunk Festival.
In A Crasher Course in Power!, Team Rocket were shown relaxing in the Great Marsh.
==In the manga==
===Pokémon Adventures===
========
In A Skuffle with Skorupi, , and came here after Crasher Wake's assistant recommended Platinum to get a Pokémon before challenging the Gym Leader. Platinum tried to catch various Pokémon, like and , with no success. At some point, the group got stuck in the mud. While they tried to struggle themselves free, a wild Carnivine attacked Chatler and , who fought it and won. Chimler saved Platinum from drowning in the mud, after which the group left the Great Marsh empty-handed.
==Trivia==
* In Diamond and Pearl, a man in the Great Marsh incorrectly states that both bait and mud make Pokémon more likely to run but easier to catch.
* If the player uses the walk through walls cheat to enter the Great Marsh, the changing Pokémon won't appear.
* If the player encounters a Pokémon while they are sunken in deep mud, a glitch exists where upon exiting the battle, it will seem that the player is still "stuck", despite being able to move around normally. The effects of this glitch are most obvious when the player attempts to move to a tile with dry land after performing the glitch.
* Despite the Galactic Bomb's successful detonation, no damage caused by it can be found at the Great Marsh.
==In other languages==
==Related articles==
Category:Diamond and Pearl locations
Category:Platinum locations
Category:Brilliant Diamond and Shining Pearl locations
Category:Parks
de:Großmoor
es:Gran Pantano
fr:Grand Marais
it:Gran Palude
ja:ノモセだいしつげん
zh:大湿地