You will need to make sure that each person has done the ??entry quest?? for passing the breasts of sheba.
Any level player can enter SL and help with the hyenas and ghost hunters, but you will not be able to leap past Yatha.
The entrance to the mines can be found between Africa and Zanzibar. NW5S4W4NWNE from Bengal Inn.
ASK CAPTAIN JOURNEY to be teleported to the entrance of the run.
From the river at the start, move north and open east. Throw/shoot hyenas while moving east, down, east. This will put you one south of Zikali, kill him to get the keys that unlock the chests throughout the mines.
From Zikali, move south, west, up, west, north, east. From here, throw/shoot hunters while moving east, south, south. These hunters may wander. Blind them to prevent them from using any of their skills, which can be devastating.
This will put you one west of the witch, Gagool. She will try to flee near the end of the fight, try to keep her on the ground so that she can't. If she does manage to flee, she will be in the room at the end of this corridor with the King, Twala.
Throw/shoot more ghost hunters while moving east, north. Putting you one south of King Twala's room. If Gagool is still alive, focus on killing her first. Twala will use a special where he will use a skill on someone who is not the tank, and will start attacking them the next round. Tanks should be aware of this and watching for these turns. Bastion cannot prevent them.
The chest in the king's room contains an amulet that can be given to Yatha to obtain entrance rights for the mine doors. ASK YATHA SHEBA to trigger the dialogue needed to give her the amulet.
From Twala's room, move 2S (tunnel room) 2W2N2W, putting you one east of the first tree. Move west, killing the tree, then south. Have each member of the group move 3W with delimiters to quickly move past Benaiah and the other tree. Those without climb will need fly to move one east, kill the second tree, and move east again.
Benaiah's room is a little tricky. If the current room is "A". The west exit can lead either one west to room "B" with Benaiah, or two west to room "C" with the second dead tree. Moving east from room "B" is not possible, while moving east from room "C" will put you back in room "A". The tank will need to go first, moving west and east repeatedly until they are in Benaiah's room. Once there, they can give the signal to the rest of the group to do the same.
After killing Benaiah, move 2WN to end up with Yatha which will allow you to complete the amulet entry rights quest and leap to the next portion.
After leaping you may end up in a room with some of the people of the mist. They are invisible and agg. Have the tank leap first to be sure there aren't too many and to take aggro before the rest of the group leaps.