The couple – who announced their engagement to the world on Wednesday (17.11.10) – spent one night at the "romantic" lakeside Rutundu Log Cabins in Mount Kenya National Park in October.
Signing the retreat's visitors' book as 'Catherine Middleton', she wrote: "Thank you for such a wonderful 24 hours! Sadly no fish to be found but we had great fun trying. I love the warm fires and candle lights – so romantic! Hope to be back again soon."
According to The Sun newspaper, the future British king chose the secluded location as the spot to propose to the 28-year-old beauty because it is so "inaccessible", and it is believed he popped the question on the veranda of the couple's cabin.
Meanwhile, Kate has celebrated her newly-engaged status by throwing a dinner party at the royal residence Clarence House for 12 close female friends after her new fiance returned to his RAF base in North Wales.
After partying into the early hours of yesterday morning (18.11.10), she then spent the day discussing plans for the impending wedding, which is expected to be held at Westminster Abbey in London and could take place as early as March.
It has now been claimed Kate will become a "full-time royal" when she marries Prince William next year, and will accompany him on all official engagements.
A palace insider told the Daily Mirror newspaper: "She will perform full-time royal duties. She wants to support William at all times. The decision has been made not to give Kate her own office, but William's office will expand."
