You have to visit is to see it on map.
I have gold and silver, which almost is the same as crystal (the same generation). In those games, whirl islands is east of Cianwood City. You can go on the pokegear and look at the map. If you surf east from Cianwood City there are a couple islands there. It is hard to find whirl islands, but as you land on an island, look on the map and see if you are on whirl islands. If your not, try more islands. It is not that hard, but dont forget to have a pokemon with you that knows whirlpool.
you have to beat the eurateck city dance ladies then they will tell you to meet at whirl island (you obviously need to get the silver wing) on your map you will see a place with swirls that is blue... it is next to cian wood city go right and use whirl pool when you see one whirlpool
u need look on map and go to the island next to whirl pool place their you get the gym badge and the medicine
It is an island city to the West to Southwest of Olivine City. It will not be labeled on your map, but it will be towards the left of your map on an island by itself near the Whirl Islands far tot he left of Olivine City. Basically, you need to do is go to Olivine City and use surf on the beach and go down and left. Make sure you do not land on the Whirl Islands, which is directly in your path Southwest from Cianwood City.
Its on the pokegear there is a map card.
hoho at bell tower, lugia at whirl islands, entei and raikou randomly around the place (you can see them on the map), kyogre (heartgold only) with blue orb and groudon (soulsilver only) with red orb. they are both at embedded tower.
there is no map. just use the pokegear. to get lugia you need to get a certain item first.
there are 2 main ones, cinnibar island, and cianwood city. there may be other smaller ones, but they don't show on the map
jeopardy
It's a map with routes to look at. They are pokewalker routes to take strolls on with your pokemon.
you get a map card for your pokegear in the second town you visit in the game an old man gives it to you