Escalus Crystal Cavern

Crystal Cavern is a dimly lit dungeon containing a variety of level 38 monsters including: Emerald Sentinel, Steel Mechanism, Crystalline Incarnation, and Crystalline Hunter, and the level 60 Saej le Black. Because most the monsters inside cast powerful offensive spells, this place is rarely used for leveling.

On the other hand the monsters within can drop expensive items such as Wind Cores, Cyclone Dagger, War Cleaver, and Sword of the Trees so it is frequently used for farming, especially the Saej which is customarily killed at the start of each farming party.

Finding the Dungeon
To reach the dungeon from the Leandril City Center flag head left and follow the path up the right side of the Paladin Trainer house. Keep going past table and you will see a cave with crystals around the entrance. Go in the cave and you're there.

To reach it from OSL, head down out of osl, go right over the bridge, down along the path at the armor shop and right at the "Welcome to Escalus" sign. Keep going right, past the house, over the blue bridge and then head down at the path right past the stump.

Keep going down until you reach the potion shop. Then head right and then down again towards the Southern Freeport flag. Keep going down past the flag and you will come to a four way intersection. Take the path along the lower right hand corner. Keep following this path until you reach the Paladin Trainer house. Then head up along the right side of that house and keep going until you reach the cave. Go in the cave and you'll be at the dungeon.

Boss Location
The boss is at the top of the dungeon. Just keep heading up.

Warning: the boss is quite powerful and generally requires a full farming party to defeat. Also, if the party has a druid, make sure they do not cast Sunlight. Saej le Black will turn it into a damaging area affect instead of a healing one.

Monsters
This dungeon contains the following monsters:

Emerald Sentinel

Steel Mechanism

Crystalline Incarnation

Crystalline Hunter

Saej le Black (boss)

Drops
The monsters in this dungeon drop the following items:

Wind Core

Level 30 Armor

Level 35 Armor

Level 40 Armor

Cyclone Dagger

War Cleaver

Sword of the Trees

Level 55 Armor

Hallowed Armor