you cant cover the holes in your secret base.
There are secret base items called solid boards that you can use to cover those pesky holes in secret bases.
they are secret bases you need to teach a Pokemon secret power first to use them
You cant remove them, but when Lilycove Department Store has a clear-out sale, (which will only happen after you beat the Pokemon league challenge) you can buy wooden boards, which you can cover the holes up with and then walk over them.
You have to buy stiff boards from the lily cove departments store sale. its shown on the TVs but it is rare. they will cover the holes and let you walk into those areas.
you teach a Pokemon secret power and you go up to a round tree, a hedge (the round type) or one of those random square holes in caves and use secret power!
I think you should learn your pokemon strength and use it against the holes. I just think that,because alot of people say that.
The little holes you can see on walls in Pokémon Emerald are portals to secret bases. Buy a TM (Technical Move) named Secret Power and teach it to one of your Pokémon in your party. Go to any holes and it will dig up. Inside where spacious area where you can put your stuffs there, ready for decorations and customization.
First up need to beat the game, then go to lily cove city and buy boards.
Wait until the TV says the lilycove dept store is having a clearance sale wait until the sale begins then go to the roof of the store and talk to the girl up there she will sell you cool things for your secret base like solid boards, slides, rhydon doll and a stand.
Yes, about once a week at 6pm on the roof of Lilycove Department. To unlock them, you have to watch an advert for them on the TVs which appear randomly. At the sales you can buy wooden planks to cover holes in secret bases.
if you cover the first hole it will be B if you cover the first 2 holes it will be A if you cover the first 3 holes it will be G
/cover the holes up Brandon lasscells