use a poke dex
no u dont need a poke radar u can find him on route 206
you will need poke-radar and go to route 209. then you will find a gligar. to involve it give it razor fang.
You go to route 214, find a patch of grass, and use your poke radar. (Its very rare)
after you have the national dex, you can find it on route 206.
You find it in Route 224 using the Poke radar and there you go you've got it from Paul Myers
You find Gligar in Pokemon Platinum at Route 206. You can't FIND IT IN PEARL.
You can only get gliscor in Pokemon emerald or you can use your radar to find him.I think he's near Etnera city. FAIL you can't get him in Pokemon emerald, you get gligar in it but gliscor can only be gotten through pearl/diamond/platinum
you find him on route 210 using the poke radar
To get a Gligar in pkmn plat. you have to go to the end of the cycling road near Oreburgh city. You have to cut the tree that you see and look for a Gligar in the grass you find there. Good luck!(Note: If you give your Gligar a razor fang at night, you can get a Gliscor!)
Go to the route under Blackthorn City and go into the grass and you might find a Gligar.
With Pokemon Emerald inserted, you can find Gligar in Route 206, 207, 214, 215, 227, and in Stark Mountain. It's easier to trade for it from Pokemon Platinum, for it doesn't require Pokemon Emerald to find Gligar in the wild.
Gligar can't learn erthquake if you want him to learn erthquake you need to go find the Tm