While often times tiki bars are not known for their quality of drinks, Forbidden island is the exception. The drinks here are some of the finest in the bay area, and that is saying a lot because the bay area is in the middle of a renaissance right now for true mixology.
10 euro gets you a self-guided tour through the BOLS hall of senses. You test sight, smell, touch, taste, and sound as you get the full genever experience.