A vault is used to protect specific kinds of resources from the robber.

A vault must be purchased for each resource type.

Place a resource card under the vault after its purchased.

The vault type costs 20 cards of each resource type that can be bought separately.

2 additional cards in your hand beyond 8 that are protected from the robber.

Walls do not go on the board - but must have at least 1 city to purchase a wall.  Each city can have up to 4 walls.

Allows you to travel to the ports of large islands or to small islands

A raft can only move 1 hex angle per turn in water