Take a Private Amsterdam Canal Cruise
While it's not a cheap endeavor, hiring a private boat and guide to cruise Amsterdam's canals is much more romantic than sitting next to strangers and their three teenagers on a massive group boat. Aboard one of the quaint "salon boats," you and your significant other can enjoy a private dinner or just sip champagne as you float along Amsterdam's waters. To book, I suggest
Rent a Boat Amsterdam, a highly reputable local company that represents several different restored salon boats for rent. Be sure to ask them about special catered or themed cruises.