No one is blocking the way to the Lake of Rage. There is one person blocking the Gym and another blocking the way to route 44.
If it is the guy who wants you to buy a rage candy bar, buy it or go away for a bit and never get a chance to buy it again. If there is some guy blocking the cave entrance you have to go to the Lake of Rage.
you have to go to the guy blocking you from blackthorn city
You go north towards the lake of rage you will have to catch a red gyarados
first, you go to lake of rage in Mahogany Town. then there is a guy that is a guy that is looking at a sign, you talk to him. he will vanish. leave lake of rage. then a sign is next to a house. go in the house. the guy that you talked to at lake of rage is in there. he finds the secret stairs. go down the stairs. that's the underground warehouse. enjoy:) !
You msut first go to the lake of rage and catch garydose,and then you should be able to go to the team rocket base in mahogany town,youll see a guy after you catch gyardos,lance,just go with him.
Mahogany City, until you catch or faint the red gyrados in the lake of rage.
in the Pokemon league
he's the guy that gives you the TM Hidden Power
You Don't Wanna Know
You can't get past that guy until you go to the Lake of Rage and catch/defeat the Red Gyarados. After that he'll go away.
you need the natonal pokedex
you have to beat the towns gym leader. first go to lake rage and see the red gyrados then talk to dragon tamer lance and youll be on the right track