Start by diving the resorts. In addition to yours, Habitat has nice stairs and from there you can access the Cliff divesite with a short swim north. Drift back over the LaMachaca on your return but don't waste a dive on it. Another nice thing there is they have a ramp down to the dive dock level - not a flight of stairs. Non-guests there's a $5 fee (unless it's gone up) The other Cliff entry is at Dive Friends but it's pretty rocky.
Also pay for a tank rental at Dive Friends at either Den Laman or Sand Dollar condos, Den Laman also has a nice set of stairs - SD has stairs onto the beach. Both are adjacent and the dive site is Bari Reef - among the best.
Windsock Beach south is an easy entry also - one of few sites where you just walk in off the beach. It gets it's name being just off the airport runway.
18 Palms at the Plaza Resort is a beach entry. If you rent from Toucan Dive they do/will have tanks stored there. Don't walk over from the dive shop though, exit the resort left then park in the small lot you'll see 50yds. away on the left. It might say employee parking but don't worry about it. 18Palms from there is thru the gate then almost immediately right - if you pass the pool you've gone too far.
Some of the south sites have breaks in the ironshore with sandy channels leading from the beach to deeper water. Here's about the best example of that at Vista Blue - more of an advanced site due to currents (typically in the afternoon) but you can see how easy it is to sit on the ironshore, gear up then walk out into the water.
Shore Diving Site Picture for: Vista Blue of Bonaire South, ABC Islands
I also walked right in off the beach 50' north of Salt Pier but hit the reef in 2-3' and had to float/scramble over it.
At some sites previous divers have made little piles of coral rubble indicating the best entry point. Not always right in front of where you park. Don't take your wife to
1000 Steps this trip...lol
There's site entry photos here -
Scuba Shore Diving Region: ABC Islands 
