Keys are items that are found randomly in Solar Cave. There is no telling which floor they will be on. But Keys are like items, they can be picked up, thrown, sold and can be brought to you. But Solar Cave is not the only dungeon with Keys in it. Western Cave (a dungeon that is unlocked later in the game) also has Keys scatered around in it. Because Keys are random items in either dungeons, you may need to visit those places again and again to build up a fair supply.
YOu Automaticly get access to it when letters about it appear in your mailbox
After you beat rayquaza you can go there.You will also be able to be your teamates.
Keys can be found on the floor in Solar Cave and Western Cave. They are more frequently found in Solar Cave, though.
In Pokemon Mystery Dungeon: Red/Blue Rescue Team, link cables are found where important items were once kept i.e. HM's, etc. For example, if you have surf, on floor 20 of Solar Cave, where Surf once was, a link cable will now be there. Important items are found in Solar Cave, Wyvern Hill, Mt. Faraway and Wish Cave.
After beating Rayquaza, keep doing rescue missions. Then go to Solar Cave and clear it, then one day your Pokemon will wake up early in the morning and will go outside and see a blue blur. He'll go inside.
after beating Raquayza Medicham will appear in front of the team base so, you have to talk to him then go talk to Lombre in pokemon square then go talk to Wishcash in his pond then in the conversation he'll say something about the solar cave then after talking to him go to the dungeon list and solar cave will appear
You can get the Waterfall HM in Solar Cave (with key on any floor or without key on 20F, Look for a place with water in a square).
In solar cave
You'll get it after you beat the game.
Keys can be found on the floor in Solar Cave and Western Cave. They are more frequently found in Solar Cave, though.
when you defete the game you have to do some thing
floor 30 of solar cave
key door 15F solar cave
After you beat the game, you yalk to whiscash. He will giv you dive. He then will say "If you lose this, go to solar cave." And........ poof! you hav solar cave!!!!!!!!!
solar cave and buried relic
solar cave
I believe it is in Solar Cave...
No, it's only in blue & red rescue team.
floor 20 of solar cave