We're long since booked (and fully paid) on a week-long river cruise from Amsterdam in April. Unfortunately we chose the April 27 sailing, having failed until recently to realize that's King's Day. We will arrive in Amsterdam several days earlier, staying at a hotel on the Singel. Our logistical problem is how to get our luggage to the pier at De Ruijterkade on embarkation day when no surface transport whatsoever will be available in the Centrum. (Unfortunately, we're not as young as we used to be, and walking more than a minimal distance with substantial luggage is not an option for us, especially through crowds.)
The best plan we've so far come up with is this: On the morning of the 27th, check out of the hotel and leave the luggage for later pick-up; walk to the Hortus Botanicus, admire the pretty plants, and have lunch at their Café; walk to the Waterlooplein Metro, take Metro to Centraal Station, walk to the pier at De Ruijterkade, check in, and then after dinner take a taxi back to the hotel and pick up the luggage. (Fortunately the ship doesn't actually sail until the next morning.)
Can anyone suggest a better, or even a different, plan? Cecile74, if you're listening, this especially means you.