Azul: Crystal Mosaic expansion Miniature Tunnels may require you to

Tunnels may require you to pay extra cards to build on them

you can take an action during the game to place a harbor in that city (with a limit of one harbor per port)

or 3x Deck Case 100+ plus extra storage space

The first pawn to reach the opposite side wins

Azul: Crystal Mosaic expansion Miniature Tunnels may require you toAzul: Crystal Mosaic contains double sided player boards, with each board offering new challenges and exciting new strategic opportunities. The "Crystal Mosaic" of the title is actually a plastic overlay that provides a recess to keep tiles from being accidentally bumped out of place. Four overlays are included in this expansion. NOTE: This is an expansion and not a standalone game. A copy of Azul is required to use this product.