Buccaneer's Cave

Description
The mountains of Buccaneer's Den are partly hollow. Inside them, the system of the Buccaneer's Cave exists. The cave system is filled with a number of nasty monsters, but it's main usage is for the criminals of the island to hide their activities from the britannian authorities.

While nothing much was going on with the cave in Ultima VI, apart from a connection to the main land, in Ultima VII the cave was a base of the Fellowship. While accessible from the Fellowship branch, the House of Games and the House of Baths, it was used by Hook as a home. The Fellowship also had a prison and torture chamber in it.