Today marks the first day of service between my two favorite “global” cities via Eurostar. It’s now possible, for $160 (most likely lower once the initial surge of demand wanes) to get from St. Pancras in London to Centraal Station in Amsterday in less than four hours – without changing trains.

In addition to opening up new vacation possibilities, this new route has a potential benefit to travel hackers. The UK’s Air Passenger Duty for departing from the UK to the US in a premium cabin is now $219 (according to FX rate as of this writing), so it might make sense to add in a trip to Amsterdam for your trip back home if you’re using miles and points to fly back in business or first class. Saavy hackers have been taking the Eurostar to Paris for this reason for years. Why not add an extra day and have yourself a Dutch treat?