Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Hamburg (93% of total searches to Wadden Sea). The next most popular destinations are Bremerhaven (4%) and Hattstedtermarsch (2%). Searches for hotels in Ribe (1%) are also popular.
KAYAK users have found double rooms in Wadden Sea for as cheap as $39 (Hamburg) in the last 3 days. The average price is $452.