Determine if the Partnachklamm gorge is currently open. Identify the recommended visiting times for groups of 15 or more people. Also, find the contact email address and phone number for the gorge administration. Provide all this information in your answer.
Navigate to partnachklamm.de. Locate the current open status of the gorge. Identify the recommended visiting times for groups of 15 or more. Locate and extract the contact email address. Locate and extract the contact phone number. Synthesize all identified information into a concise answer.
Confirm that the gorge is stated as 'geöffnet' (open). State the recommended visiting times for groups of 15 or more as 'before 10:30 AM or after 3:00 PM'. Provide the exact email address: 'partnachklamm@gapa.de'. Provide the exact phone number: '+49 8821 180 700'.