The only accessible outlets would be by the desk, so depending on how tall your kids are...you may not even need them (the outlet covers).
If you have a balcony rooms, just make sure to keep the door locked and to keep anything they could climb on off the balcony unless, of course you are with them.
Be careful with the all the cabin/bathroom doors...they are heavy and close with a bang, especially if you have the balcony door open..it creates quite a draft. There is a step that leads to the bathrooms...be careful of those.
And do not let small kids in the bathroom by themselves...the suction from the toilets flushing is enough to lose a child...you might not find them again...LOL!!
MJ