This is a historic scotland castle so you can get in free if you are a histroic scotland member or english heritage (1/2 hs first year free 2nd onwards)
This place has so many little rooms to explore and you find yourself going back and finding somewhere new
This was were the pact was made to murder lord darnley tough they are not sure which room it was you find yourself walking around wondering if your standing on the spot where the plot happened
There was a code for the toilets when we went so make sure you get that before you walk up
Nice little gift as well

Went there with my wife on a sunny day and the trip was really worth it.
First of all the access - either by busess (you have to walk then for about a mile or two) or by car (almost under the castle)
Price for entry is 4 pounds (very reasonable) and you can buy the tickets in a gift shop at the entrance.
The castle itself is a ruin but very well kept and preserved. Lots of places to see and beautiful views from the very top of the castle.
On the castle grounds you can have a picnic if you want or just enjoy the sun on the grass.
Really worth seeing as its not so far away from the city center (about 20mins by bus)

Craigmiller Castle is the most preserved medieval castle in Scotland, set in magnificent grounds and with stunning views over Edinburgh, looking down to the sea.

There are so many rooms to explore, steps to climb and you can reach right to the top of the castle and walk round the turrets, making it very exciting for children. There is a chapel and dovecot in the grounds.

There is a nice shop selling souvenirs and toy armour and lovely books for children on castles. There is a coffee machine in the shop and a room next door with tables and chairs to enjoy your drink.

The only complaint i would have is all the steps are no good for babies in buggies.