WR is a once-a-day instance that you can get that gives you a fairy decent amount of experience. You will need players above level 50 (highbies) as well as lowbies (level 20-49). Highbies and Lowbies both have different roles in WR, as it is a strategic instance.
You first can enter WR by visiting Jale and seeing the NPC, Kraft <relic guardian> directly across from the Quill Book NPC (x:266, y:299).
The first room:
There will be 5 enemies that lowbies will have to kill and they will drop parts lowbies need to pick up. If a highbie steps in a room before the room has been cleared, higher level mobs will appear. At the first hallway/stairs highbies will kill the 2 mobs with parts lowbies have to pick up.
The second room:
You will have to speak to Kraft before entering the second room: He will combine the parts that were dropped from the mobs previously to make you invisible. While you are invisible walk right into the next room with all the high level mobs (you will not be harmed) and talk to the statue-post thing in the middle of the room. This will spawn dragons that will fight the high level mobs (and keep you safe). Highbies will kill the one mob in the hallway connecting the second and third room and lowbies will have to pick up that item as it is a disguise for the next room.
BEFORE YOU ENTER THE NEXT ROOM: BE SURE THAT THE LEADER HAS FALLEN. The Kraft NPC will not spawn until that has happened.
The third room:
Lowbies will use the disguise they just picked up. This will allow them to walk through the next room without getting harmed. Talk to the Kraft NPC and say "Oh no! The Boss is down!" This will cause all the mobs to disappear and will guide you safely to the next room.
The fourth room:
Lowbies will have to walk to the center of the pool of water to spawn a dragon that only the highbies can kill. After that dragon has been slain, a lowbie version of the dragon will spawn. Slay it. One of the dragons drops a usable item. Save it for now.
The fifth room:
Only lowbies can enter the room. If a highbie enters, higher npc's spawn along with a poison debuff that threatens the entire party. Slay the 5 little dragons in this room to proceed to the next.
The sixth room:
Have any ranged character hit and kill the center sheep. If you don't have a ranged character, have a lowbie use that usable item that was obtained to walk safely in this room and kill the center sheep. Once that center sheep has been slain, a big sheep will spawn. You can choose to either kill this sheep or hug the right side of the wall to safely pass through to the next room.
The seventh room:
Lowbies should just sit at the entrance while the highbies go around a slay all the higher level sheep. Once all of them have slain, the final boss will spawn in the next room.
The eighth room:
The WR demon will appear. It can either be slain, or a tanky person can drag it back to the second room where all those dragons had spawned earlier. There will be chests in the room that a lowbie can hit for a change to get an extra buff, or a small dragon will appear, so use caution. Once it has been slain, speak to the statue on the far side of the room and gain your massive experience when you hand in the quest. Speak with it again to leave the dungeon.