Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Hamburg (94% of total searches to Wadden Sea). The next most popular destinations are Bremerhaven (4%) and Hattstedtermarsch (1%). Searches for hotels in Ribe (1%) are also popular.
KAYAK users have found double rooms in Wadden Sea for as cheap as $35 (Cuxhaven) in the last 3 days. The average price is $331.