you can't
When rayquaza asks to join the team you automatically unlock its friend area.
the friend area of groudon is not really important. you dont need the friend area to recruit it. it joins you and the friend area comes with it.
Sky Blue Plains is a Friend Area in Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team that is rewarded to the player after a random rescue mission. After clearing Pitfall Valley, and unlocking this Friend Area, Celebi's Domain is unlocked. After getting this Friend Area, players also receive a mission that unlocks Howling Forest and the end of the mission gives players a level 5 Smeargle. It is in the Plains area, and has the capacity of thirteen Pokémon, all of them of the Normal- and Psychic-types.
Rainbow Peak
a scene with a smeargle opens it he doesnt want to grow up and runs away from home after you save him he invites himself to your team and you get his area (sky blue plains) wait blue sky meadow was it yeah that's it
luck a friend bow sometimes a secomd battle and a friend area
GET THE FRIEND AREA"SKY BLUE PLAINS"FROM RESCUE MISSION.
check gamefaqs.com
at final island
P.S the friend area you want comes with it
There's a list of all the Pokemon in that friend area that is found IN GAME when you go to a certain friend area
Deoxys is on floor number 20 of Meteor Cave and if he asks to be your friend, and YOU say yes, you will automaticly get his friend area!