school enrollment before or upon arrival? (Nairobi)

Hi Everyone,

We'll be moving to Nairobi at the end of August and have just begun to look into an international school for my son. I'd thought we should try to sort it out online and get him enrolled ahead of time so he can start at the beginning of the year as much as possible. Now, I'm wondering if it'd be better to delay his start for the chance to visit them in person. Can anyone recommend the best way to proceed?

Thanks!
Rhonda