Nearest Airport are Rotterdam The Hague Airport (RTM) or Amsterdam Airport Schiphol (AMS)

From Rotterdam The Hague Airport you should take the bus and metro to reach the hotel. For timetables and tickets: www.9292.nl/en.
The train from Schiphol to Rotterdam departs 4 times per hour. Travel time is about 2 hours. A single ticket costs approx €15,- per person excl. bicycle. 

For timetables and tickets, go to www.ns.nl/en. 
From Rotterdam trainstation you should take a metro and bus to reach the hotel. For metro and bus details, how to reach the hotel, check : www.9292ov.nl/en.