How do you get the dungeons Wyvern and Wish Cave?

You get Wyvern hill after you obtain the friend area Dragon cave.You get dragon cave as a reward for a mission.

To get Wish cave you must have Latias and latios and the friend area Sky Blue Plains.

Then you head to wiscashes pond and then you see ekans and medicham walk near them and they will be talking and then go and do a mission.
The next day go and do the same,and then in a few days only ekans will be there and go to the bulliten board by the pelipper post office and there will be a mission for wish cave were you have to rescue medicham and you will unlock wish cave.( you also need surf to enter this dungeon)

To get Wyvern Hill you have to beat the game and have the secret Friend Area called Sky Blue Plains and Dragon Cave. You get these by doing missions. To get Wish Cave, beat the game and then beat Solar Cave. Beat Stormy Sea and you will find Medicham and Ekans talking about something at Whiscash's Pond. Talk to them and then do a mission or something. The next day talk to them again. Medicham is thinking about going to it. The next day Ekans should be at the Post Office Message Board. Check it and you will see Ekans's request to save Medicham on the 20th floor. It has a total of 99 floors though. Wyvern Hill has only 30 and has Fly at the 30th floor but you must have a Key from Solar Cave or Desert Region. Hope I helped.
Acgmindmaster12

To get Wyvernn Hill you need the friend area Dragon Cave. For Wish Cave you need the friend area Sky Blue Plains.

Good to hear that you read back & actually gain something from all this-that's why I do it!
WYVERN HILL-First you need to obtain the friend area Dragon Cave as a mission reward (or I can give you a WM Code for it). After you get the friend area, it will show up on your dungeon list. 30 Floors, 20th floor has the Sun Ribbon to evolve Eevee, the 30th floor is HM Fly. So, you'll also need 2 keys to get to them. While you are there, grab the Dragon Scale on floor 29 or 30 if you can, too.
Here's the WM for Dragon Cave if you need it:
Silent Chasm-B9F-escort sentret to slakoth
S?0C 4QF? 4XP!
Y7?X 74X0 J0?W

WISH CAVE-Get Friend Area Sky Blue Plains, rescue Latias from Pitfall Valley, go to the square and listen to Arbok and Medicham talk about the cave. Eventually Arbok will be there alone, after he's left Medicham behind in Wish Cave. Do a few missions, and look on the board by the Post Office to find the mission to save Medicham-then you'll have access to the 99 floor cave.

Stick around! We have all the info you need, OK! Welcome from BBG_CREECAT!

Wyvern hill is unlocked by buying a friends area, soz forgot the name, and wish cave is unlocked automaticly I think