Wish Cave

Final Floor: 99F
Unlock Method: Overhear Medicham & Ekans talking after rescuing Latias from Pitfall Valley
Initial Level: 5
Maximum Teammates: 3
Items: Yes
Check Map: No
Opponents Able to Join: Yes

At the end of this dungeon, Jirachi willl give you a wish that will allow for you to receive many items such as Vitamins