If 'uchinatravel.com' were accessible, I would want to find out if they offer tours specifically focused on the Great Wall of China, and if so, what cities they depart from or are near. I'd also be interested in knowing if they provide custom tour planning services. Please report on these details or state if the website remains inaccessible.
Navigate to 'http://uchinatravel.com/'. If the page loads successfully, search for information regarding 'Great Wall tours' or similar offerings. Identify the departure cities or nearby locations for any Great Wall tours found. Search for information about 'custom tours' or 'tailor-made travel services'. If the page fails to load, report the specific error message.
The agent successfully navigates to 'http://uchinatravel.com/' OR reports an error message. If accessible, the agent identifies whether Great Wall tours are offered and lists associated cities/locations, if available. If accessible, the agent identifies whether custom tour planning services are offered. If inaccessible, the agent reports the `net::ERR_NAME_NOT_RESOLVED` error, or any other relevant error message.