Near the entrance of mt. Silver or at the great marsh
great marsh great marsh
There is no cave in the Great Marsh.
The Team Galactic Grunt is not in the Great Marsh, he is directly outside of the entrance building. Talk to him after you have 4 Badges and he'll run off. Chase him and keep on chasing him until he battles you then he'll run off, keep on following the path until Cynthia stops you.
There is no great marsh, but a safari zone north of Cianwood City.
It is on the second floor in the Great Marsh entrance
Use the binoculars in the entrance to the Great Marsh it will tell you the best place to find Wooper once you go into the game.
Near the entrance of mt. Silver or at the great marsh
talk to wake at the entrance to the great marsh
talk to a guy to the right of the entrance in the great marsh. he will give it to you
in the entrance to the great marsh in Pastoria talk to the cowgirl then go into the great marsh and catch 5 Pokemon then talk to her again and she gives you the app
The HM for Defog is located in the Great Marsh of Pastoria City. Just enter the Marsh and talk to the Cool Trainer right at the entrance. He'll give it to you.
exit the city through the right entrance and go down and he should be right there
After you get the National Dex, Tropius can be found in Pastoria City's Great Marsh. Tropius will only appear on certain days (i.e. some days it will be impossible to find them). You can use the binoculars in the upstairs room of the Great Marsh entrance building to see whether they are available (100 Pokemon dollars per look)
There is a small chance everywhere, but you're best off in Area 5, which is just left of the entrance.
the great marsh is in Pastoria City
great marsh great marsh