Unfortunately, I can't help you find exactly what you are looking for, but let me just say that those places you mention are among my absolute favorite places, not just in the entire Caribbean
, but in the entire world!!
To me, they are so special, that I consider them 2 (of 5) of the Bahamian version of an 8000 meter peak in the Himalayas!
The other three that I put in that category are NE Point Great Inagua, East Plana Cay, and of course Hogsty Reef, what I like to affectionately call the "K2 of the Bahamas"!!
Please take a TON of photos at each place and post them.
In April I'll be visiting Mayaguana and trekking on foot to the NE shore (Long Bay) and then to the NE point of Great Inagua.
Since I'll be flying myself there in a single engine
Cessna 172, I'd be more than glad to fly over these places as low as 100 feet to get some photos and video from my wing mounted Gopro if you wish!