Thank you so much for the info.
We rented a car in 2017 in Curacao and snorkeled at Playa Kalki and Playa Piskado. The turtles at Playa Piskado were amazing. We were there in April of 2017, we had Piskado to ourselves.
In 2017 we rented a car in Bonaire as well, but my husband did shore diving so I only go to snorkel at Hilma Hook sight. The place we rented from no longer rents to cruisers, so we are getting a Golf Cart this time. I will add these sights to my list of must do's.
We will have to go back again and take the ferry over to Klein. So much to do, and so little time, haha.