Arsenale di Venezia

The Arsenal Shipyard is a shipyard in Venice that also includes a secret location (Templar Lair). The shipyard is where the boat with the Piece of Eden docked from Cyprus.

Templar Lair
The entrance to the Lair is a door on a small stone structure, and most of the inside of the Lair is what appears to be a ship building area.

Although the Secret Location offers no new plot or characters, it does reward the player with a large amount of florins.