if you have surf then anywhere with water
Use Surf on Route 205 and you'll easily find a Tentacool.
In RSE you can find Tentacool on Route 103.
There are three Pokemon you can catch without a rod on Route 132 (by surfing): Tentacool, Pelipper and Wingull.
to see Pokemon 136 surf on Route 205 or 210 and you will find <drumroll> TENTACOOL!
I don't know where you can find a trainer with Tentacool, but you can easily find it surfing on Route 205.
You can find a Rapidash on: Route 22, Route 28, Mt. Silver
in Pokemon soul silver you can find it at route 36 or route 35
you can get one in pastoria city.Use surf and there is 75% that tentacool will come.
You can find it on route 16, 17 and 28
Route 5,6,24,25,31,32,44 is where you find bellsprout
Headbutt trees on route 38
They can be found on any grass route (not in the kanto)
It can be caught at Route 2.
It is in Route 5 at Night time.
you can find it by fishing or just surfing on the water..........
You can't catch one in Silver. You can catch one in Gold, where you can find one at Route 45, and then trade it to Silver.
You can get it on Route 25 from Bill's grandfather.
Kadabras are only found on Route 8
You get it on Route 27 inside the cave
in route 1 but first you have to ask this question :where is route 1 in soul silver (is me how answerd it)
You can find it from Route 45 and Mt. Silver. For more info click link below.
Route 5, Route 6, Route 24, Route 25, Ilex Forest, and Safari Zone (Marshland).
you can catch one on route 24 in the tall grass
The Viridian Forest and I think Route 2
Route 40 on Mondays Only.