William and Kate, who have frequently donned traditional Pakistani dress by local designers during their trip, have highlighted education and the impact of climate change in the country.
The royal couple has not been traveling with their children - but they are checking in daily.
The next stop on their itinerary was the National Cricket Academy where the royal couple was welcomed by Pakistan Cricket Board CEO Wasim Khan and several cricketers including Azhar Ali, Sana Mir, Hassan Ali, Shaheen Afridi and Waqar Younus.
The head covering was necessary for the visit to the Badshahi Mosque - Pakistan's second largest - which dates back to 1671, and is considered one of the city's most famous landmarks. All in all, the day showed what Royal tours always do best: shining a spotlight on real people, and doing the hard work of promoting hope.
The couple rounded off the trip with a visit to the Shaukat Khanum Memorial Cancer Hospital, founded by Prime Minister Imran Khan, where Diana is remembered fondly for helping raise money for the facility in the 1990s.
Diana brought her profile to the hospital, and the photos of her visits with children undergoing cancer treatment were reportedly among her favourites.
After a busy day, the couple departed for Islamabad at 7 pm in the evening; however, the plane had to return to Lahore due to unfavourable weather conditions.
The duo is expected to depart for their home country on October 18.
The historic Badshahi Mosque was built by Mughal Emperor Aurangzeb Alamgir in 1673.
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Art historian Faqir Syed Aizazuddin also accompanied the royal guests during their visit to the mosque and briefed them about the history of the grand building.
After an excursion to a melting glacier in the Hindu Kush mountain rash in northern Pakistan, the couple were given colourful welcome to a settlement of the Kalash people.
"Fantastic", the prince had remarked as he sifted through the pages of the book.
Prince William also reportedly asked his wife to go on bed rest because of her delicate condition as her morning sickness might once again affect her alleged pregnancy.
In Kalash valley, the royal couple met locals and spent time with children.
Believed to be descended from Alexander the Nice, they worship their gods with music and dance. "They were very happy, meeting and shaking hands with everyone", a district administration official said of the royal couple.
The couple met with environmental experts to discuss the melting, and later spoke with residents who have suffered in the floods.