For accomodation please refere to the following company. The website is also available in english as linked below.

Bremerhaven Touristik
TouristCenter Hafeninsel
H.-H.-Meier-Stra├če 6
27568 Bremerhaven
Tel: +49 471 809 36 100
touristik@erlebnis-bremerhaven.de
https://www.bremerhaven.de/en/tourism/