darook
Contributor
The new(er) Dive Guide Bonaire book is excellent as well. Since they will be boat diving too it describes the sites that Susan doesn't put in the shore diving book. They may not read about the site until after they did it but makes logging and memories easier. Every shop has it and BSDME.1000 Steps is a very easy entrance, it's the walk back up that people hate.
If it were me, I'd buy a copy of Bonaire Shore Diving Made Easy and tab all the sites marked as easy/beginner. There are some very easy entries even in the south.