There are Curacao port tours offered to cruisers who stop by this lovely port. One of the tours available to cruisers will show you the liqueur factory and the Hato Caves. The tour is organized in a convenient manner for all cruisers. The tour picks you up right at the dock where your cruise ship lets you off, and you can proceed from there. The liqueur factory allows cruisers to sample their alcohol. Keep in mind the Hato Caves are hot and humid and plan accordingly.
For more info, see Curacao Port Guide