You can do several things:
-Go south from Pallet town to Cinnabar Island.
-Go south from Fuchsia city to Seaform Islands.
-Go east from the Pokemon Center before Rock Tunnel to get to the Power Plant.
Chat with our AI personalities
I think the gym in fuschia city
the one you get from the gym in fuschia city.
You can only use Surf on calm water its not possible to surf on rough water.
Yes, Krabby is able to learn Surf. After all, it is a Water-type Pokemon.
On four Island you will need a Pokemon that knows Surf.