Dear Guest! Thank you for using our online-booking system. You will need the following browser to make an online booking: For Windows the minimum requirement is Internet Explorer version 6, for Firefox at least version 2, for Opera version 8; for the Apple Mac you will additionally need at a minimum the Safari version 2. Cookies have to be enabled and Java Script activated. Your data is encrypted and thus securely transferred to prevent misuse by third parties. The retrieval of your credit or debit card information only serves the completion of booking and is not released to third parties. Payment is made – if not otherwise stated - on site. If you like to get in touch with us personally, you may reach us at our hotline: +49 (0)331-275580 available Mondays through Fridays from 9 a.m. until 7 p.m., Saturdays and Sundays from 9 a.m. until 4 p.m. (between November and March from 9 a.m. until 2 p.m.) and on Christmas Eve (24th December) and New Year’s Eve (9 a.m. until 2 p.m. /4 p.m.) and on Good Friday, 1st May, 3rd October (German Unification Day) and 31st October (Reformation Day) (9 a.m. until 2 p.m. / 4 p.m.).