Here is info. Former Ohioguy had posted a few months ago:

Jack Bay/Isaac Bay/Et Stykke Land: Jack Bay, Isaac Bay, and East End Bay beaches (access by foot via the dirt road just east of the big white telescope by Cramer’s Park or a road just west of the Point Udall Monument; if you start near the telescope, you can also climb up Sugarloaf Hill for a view of the whole East End Marine Park; from the monument, you can hike down to Point Udall via a sort-of-hidden path that starts just outside the eastern wall)

Wills Bay/Annaly: The Furnel Ridge Trail goes east-west through the center of these estates (you can start from behind the Carambola hotel at Davis Beach or from a spur of the Western Scenic Road [Route 78]; take Creque Dam Road [Route 58] east all the way up to the end at Route 78, then go northwest on the dirt road about a mile; bear right at the Y-fork and go another 100 feet; a dirt road on the right goes down into Annaly while the dirt road continues up into the ridge, where there’s an excellent view of the forest and coast; you should walk, not drive, up there [too steep; and don‘t even think about driving down into Annaly, unless you have a four-wheel-drive jeep and are an experienced bush-country driver] Wills Bay Beach has two swimable pools at the northwest end, while Annaly Bay and Annaly Cove have shallow pools and coral flats)