Brother I did Family trip last year on my city 2015 let me give you some tips because you are with traveling with family and vehicle is Mehran so breaks are essential.
Day 1: Leave LHR @ 4:00 AM and reached @ Abbotabad till 12:00 PM
Take 2 hours break
recommended stay Options are Hotel Demanchi or Hotel One on main highway
also pre-book your room using their account number Contact # 0333-5040543 Mr Sajid Manager
Visit Ilyasi mosque and shimla Pahari same day , come to hotel around 9:00 pm get some sleep
Day 2:
Get your tank Full
Leave Abbotabad @ 4:00 AM and reached @ Naran till 11:00 AM
Get your tank full from balakot
Check in to Hotel Siam Jheel road contact # 0322-9800047 pre book using their account number
Get some rest eat lunch and explore Naran bazar
Day 3:
Getup early
Contact Shafique Local drive contact # 0346-9611130 and book jeep for Saiful malook
Spend 3-4 hours there and its better to take food with you
Day 4:
Getup early
Contact Shafique Local drive contact # 0346-9611130 and book jeep for Babusar Top
It will take 7-8 hours round trip and on the way Stop At Jhalkad and LuluSar lake
Day 5:
Getup early
Leave Naran @ 9:00 AM and reached @ Shogran till 11:00 AM
Get some rest
Book jeep for Siri and Paye
Day 6:
Getup early
Leave Shogran @ 7:00 AM and reached @ lahore till 5:00 PM
Traveling time range i given is maximum considering short stays and i strongly recommend short stays
Brotherly advice
How much they resist Dont let your kids to go near river Bank keep 10 feet distance from water
There will be water streams all the way between Balakot and Naran some time there are too slippery
There are pharmacies in Naran but its better to keep Antibiotics and other medicines e.g (klaricid for throat infection,cyproxin for stomach infection and lower body , Immodiuim for dieria, motilium for nausea , esomega for acidity e.t.c)
diapers for one week if child is infant
Powdered Milk if child is specific to brand e.g migi,Morenaga
Bottle warmer
Electric kettle
Always Use mineral water which is available in Naran
Clean Bed sheets or Blankets if you are hygine conscious
Dont use Towel provided by hotels
Bottles of Detol very helpful to clean toiletries if mixed with water
Ride check before Travel
Check for radiator or gasket leaks which Mehran is known for
All belts AC,generator e.t.c
AC Gas leakage and functioning
Wheel balance and alignment
Sun Shades rear and passenger side
Battery, generator and all Belts
Engine oil leaks on tappets or from seal area
Break Pads,Drums and Disks
Mehran Fuse
All 4 tires and stepney for punctures or check if there are any cracks
Battery water
Thanks