Tokens can be sacrified with the following terrains: Forest, Water, Volcano.
To sacrifice a Token, the player places one Token to the Sacrifice Area on the Victory Point Track. The Sacrifice Area is shared by all the players.
When a player enters the Forest or crosses a Waterway they have to immediately sacrifice one of their Tokens for that turn. Note that this needs to be one of the unplaced Tokens. If the player does not have Tokens left for their turn, they can’t place a Token that would require sacrificing an additional Token.
Any Token placed on a Volcano will be sacrificed at the end of the turn, after all three Tokens and the possible guardian action has been used.