At what age then can bring your child to Haw Par villa to see the 18 level underworld?

Kids can be very easily scared. I don't see the point in showing that to then when u know they'll freak out. They'll have nightmares. Wait a few more years.

I would think primary 5-6 seems ok. They would understand more instead of scare. Or can prep your daughter about it?

last time during kindergarten days, we had school outing to Haw Par Villa

For me I would wait until primary 6.

Primary 6 would be ideal...(: