1. The first, and most obvious recommendation would be a walk along the scenic canals. Criss-crossed by bridges, a grand total of 165 canals encircle the city and within the pockets of land that their eclectic network creates, you can find shops, galleries and innumerable cafes. We didn't have time for a tour - but hopefully next time?
2. It's important not to miss the chance of a sneaky peek at the Red Light District. As a tourist, you'll be nothing more than a voyeur - anyways there are always more people watching than participating with the District having the surreal atmosphere of a sexual theme park:- a sort of "Alton Towers" for consenting adults if you like.
3. Visiting one of the Amsterdam coffee shops is a truly unique travel experience. They all sell coffee but their primary income is derived from the sale of cannabis based products to either inhale or eat. Under International treaty provision, the Netherlands cannot legalise cannabis but in practice you can carry up to 5 grams of the drug without fear of prosecution.The first of the Amsterdam Coffee shops came into existence in the 70s and they have become an established and iconic feature of the city's famous tolerant and relaxed reputation.
4. Try. Amsterdam. Food.
5. My final suggestion (can’t say recommendation, I didn’t actually have time to do this) would be a nose around one of Amsterdam’s many museums. It’s a city steeped in history, culture and symbolism, for example the home of diarist Anne Frank. This is definitely a must on my list for next time.