I read on one post here that you cant night dive on your first day in BonAire?

I arrive Saturday evening, have a orientation session to the Marine Park on Sunday morning. Shouldn't I be able to night dive Sunday evening?

Thanks in advance.

Yes, no problem with Sunday evening. It's Saturday evening that's out, since you won't have had your marine park briefing yet.

Faith

Depends on the dive operator. Some of the smaller dive shops have been known to provide day of arrival orientations (although that would presume a mid afternoon or earlier arrival - none of the dive shops on Bonaire are open beyond 5 or 6pm or so).

Jake

There is also the matter of getting tanks and weights: they generally are not available when the shop is closed without prior arrangement.

Part of the key is also semantics: the difficulty is diving on the 'day of arrival'. Here that is Saturday, as Faith said.