Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Hamburg (96% of total searches to Wadden Sea). The next most popular destinations are Sylt (2%) and Den Helder (1%). Searches for hotels in Esbjerg (1%) are also popular.
KAYAK users have found double rooms in Wadden Sea for as cheap as $19 (Sankt Peter-Ording) in the last 3 days. The average price is $272.