East from lilycove city its a cave in the north.
You can only catch it in Lillycove by teamaqua's old hiding place.
Er isn't a Team Magma base in Emerald. In Ruby is er one by the city with the big market, in Sapphire is there an Aqua base.
Unfortunately there is no TV in Ruby/Sapphire/Emerald for a secret base. Many people worldwide will be upset. :(
when you mix files with another person with either ruby sapphire, or emerald their base should appear in your game and your base in theirs, and u could find the bases,
yes
In team aqua's base
In your secret base.
For Sapphire and Emerald, they are not in the cave
You cannot fight people in your secret base.
somewhere in their base
no you cant
Go to aquas base in Lilycove