It is less than 5mins scenic ride from just outside of Amsterdam Central Station to Buiksloterweg.
The ferry is FREE and it operates 24/7. Just follow ferry IJ sign.
Then It’s an easy 15-minute walk or a 5-minute cycle to the hotel.
You may also take bus number 38, which stops 200 meters away from the hotel entrance.
The ferry runs throughout the year, no matter how cold it gets!
You can check the schedule of the ferry here.