Are you able to call yourself a true Cambodia traveller if you haven't seen the Angkor Wat Temple Complex? You should mark this UNESCO World Heritage site on your family's travel itinerary. Even little youngsters will be in awe of this landmark's majesty.
However, there are drawbacks to the temple's status as a major tourist attraction. During the busiest times of the year, the attraction site might get extremely crowded. If you want to maximise your comfort, try to organise your excursion for the wee hours of the morning or the late afternoon.
Once you've gotten a good trek in, you can head to the best spa in Siem Reap which is located at the FCC Angkor by Avani to unwind afterwards as well!