go to the red gayrados lake defeat or capture gayrados then the man will be gone
you need all of the gym bades
Beat the Kanto Gym Leaders CFS
Use the squirtbottle you get from a girl in a flower shop at goldernrod city.
You have to have defeated the seventh gym leader in Snowpoint city
you beat the gym leader
beat the goldenrod gym then go to the flower shop in goldenrod and she'll give you the squirt bottle
The fifth gym can be Jasmine or Chuck. No one is blocking any of the gyms. Although Jasmine might not be at the gym until you help the injured Pokemon.
you have to get the cianwood gym badge and the olivine gym badge
Defeat the Snowpoint City Gym Leader
you have to get all eight badges from all the gym leaders.
It looks as though you cant get past him but move further up and you will be able to go round the back of the gym, its pretty obvious when u think about it!
the only fire Pokemon you can get before the second gym is cyndaquil, the starter